Products

E3 Ear Bud with Mic is designed for classroom environments, combining durable construction, noise‑reducing ear covers, and a built‑in microphone for interactive lessons and tests. Key Features & Benefits Integrated Microphone — allows voice input for assignments, language labs, or testing Noise‑Reducing Ear Covers — help block ambient sound so students can focus Durable ABS Construction — built to withstand daily classroom use Inline Volume Control — lets students adjust output without changing device settings Tangle‑Proof 43″ Cord — reduces tangling issues in desks or bags Two Sizes of Ear Covers — ensures comfortable fit for students of various ages Wide Compatibility — works across iOS, Android, Windows for both audio & mic Technical Specifications SKU: E‑3T Price: $10.09 Connection: 3.5 mm plug with mic & audio in one cord Cord Length: 43″ (approx.) Body: ABS plastic for durability Minimum Order: 10 units

E3 Earbud with USB Plug and Mic brings versatility to your classroom or lab. With a USB interface, built‑in microphone, and signature E3 durability, it’s ideal for voice recording, language software, or online lessons. Key Features & Benefits Noise‑Reducing Ear Covers to help students listen clearly at lower volumes Built-In Microphone for voice recording, speech assignments, or interactive lessons Durable, Shatter‑Resistant Body built for rugged student use In‑Line Volume Control for quick audio adjustment Comfortable Fit with two sizes of ear covers for different students Tangle‑Proof 3.9 ft cord — perfect length for classroom seating Technical Specifications SKU: E‑3USB Connection: USB plug (audio + mic over USB) Built-in mic: yes, for recording / speech use Noise‑reducing ear covers (replaceable) Cord length: 3.9 ft (approx) Inline volume control: present Durability: designed for classroom / student environments

Koss IL200 KTC Interlocking In-Ear Headphones: Durable, Noise-Isolating, and Perfect for Education The Koss IL200 KTC Interlocking In-Ear Headphones are designed to deliver exceptional sound quality, comfort, and convenience—ideal for classrooms, computer labs, and libraries. These innovative headphones combine cutting-edge technology with a durable, tangle-free design to create the ultimate audio solution for students and educators alike. Key Features: Tangle-Free Interlocking Design: The interlocking form of the headphones allows them to nestle together easily for simple, tangle-free storage, reducing the hassle of dealing with frustrating knots. Perfect for schools and classrooms, this feature ensures students can focus on their learning, not untangling cords. Noise-Isolating Earbuds: With noise-isolating in-ear stereophones, these headphones block out distractions, helping students stay focused on their lessons, whether it’s listening to educational programs or taking part in testing. Enjoy crisp highs and clear lows without interference from ambient noise. Customizable Comfort: Includes three sizes of silicone ear cushions, ensuring a comfortable and secure fit for students of all ages. Whether for extended listening or group activities, these earbuds provide an all-day comfort experience. Koss Touch Control (KTC): The built-in Koss Touch Control (KTC) remote and microphone technology is fully compatible with iPhone®, iPad®, and iPod® devices, making it easy for students to interact with their devices for educational activities, voice recording, or communication. Durable Metal Construction: The cast and machined metal enclosure provides long-lasting durability, with a high-quality build that resists wear and tear, even with frequent use in demanding classroom environments. Ideal for Education Environments: Perfect for classrooms, computer labs, and libraries, the IL200 KTC headphones deliver outstanding audio for various learning programs and interactive activities. These headphones make it easier for students to concentrate and engage with digital content. Versatile Compatibility: Featuring a straight, dual-entry 4ft cord with a standard 3.5mm plug, these headphones are compatible with a wide range of devices, including tablets, laptops, smartphones, and media players. Color Options: Available in black and white (black shown here), these headphones blend seamlessly into any classroom environment. Limited Lifetime Warranty: The Koss IL200 KTC headphones are backed by the Koss Stereophones Limited Lifetime Warranty, offering peace of mind for educational institutions and users. Why Choose the Koss IL200 KTC Headphones? The IL200 KTC Interlocking In-Ear Headphones offer the perfect balance of form, function, and durability for educational settings. Their tangle-free design, noise-isolating capabilities, and customizable fit ensure that students can fully immerse themselves in their learning experiences. The Koss Touch Control (KTC) feature makes it easier for students to control their devices and engage with educational content, while the metal construction ensures these headphones withstand the rigors of daily classroom use. Perfect for Schools and ClassroomsDesigned to meet the demands of schools, libraries, and computer labs, these headphones provide exceptional sound quality, comfort, and convenience for all your audio needs. Whether for interactive learning, digital lessons, or standardized testing, the Koss IL200 KTC headphones enhance the learning environment and help students stay focused. Get Your Koss IL200 KTC Headphones Today and experience the next level of educational audio—durable, comfortable, and built to last.

Personal On-Ear Stereo Headphones – Affordable, Durable, and Ideal for Learning The Personal On-Ear Stereo Headphones provide an affordable and reliable audio solution for students and educators alike. Designed with comfort, durability, and high-quality sound in mind, these headphones are perfect for a wide range of educational environments—whether it's for classroom learning, online lessons, or recreational use. Key Features: Crystal Clear Stereo Sound: These headphones deliver crisp, high-quality stereo sound with 40mm speaker drivers and a wide frequency response range (20Hz-20kHz), making them ideal for music, lessons, podcasts, and videos. Comfortable & Adjustable Fit: The lightweight, adjustable aluminum headband ensures a snug, personalized fit for all head sizes, while the replaceable foam ear cushions provide hours of comfortable use without pressure. Durable & Reliable: Built with a chew-resistant, PVC-jacketed, braided nylon Dura-Cord™ that resists wear and tear, these headphones are designed to last, even with daily classroom use. Universal Compatibility: Equipped with a 3.5mm stereo plug, these headphones are compatible with a wide variety of devices, including MP3 players, cell phones, tablets, e-readers, computers (Mac & PC), CD players, stereos, TVs, and most gaming systems. Anti-Lice Storage Bag Included: Keep hygiene top of mind with the included heavy-duty, moisture-resistant, reclosable anti-lice storage bag. When sealed, it kills lice within 24-48 hours without chemicals—helping prevent the spread of lice among students. Optional Accessories: Enhance the longevity and cleanliness of your headphones with the Refresh Kit (5076), which includes a replacement anti-lice storage bag and two new ear cushions. You can also opt for HygenX25, disposable sanitary ear cushion covers (box of 50 pairs). Product Specifications: Dimensions: 8 L x 5 H x 7 W inches Weight: 0.37 lbs Design: Personal, On-Ear for a comfortable fit Cushions: Foam, replaceable for easy maintenance Headband: Adjustable aluminum for a customizable fit Plug: 3.5mm Stereo, 45-degree thin barrel for secure device connections Cord: 6 feet of chew-resistant, PVC-jacketed, braided nylon Dura-Cord™ Speaker Drivers: 40mm for clear, rich sound Frequency Response: 20Hz to 20kHz for full-range audio Impedance: 32Ω for optimal performance Sensitivity: 100dB for loud, clear audio output Anti-Lice Storage Bag: Heavy-duty, moisture-resistant, reclosable bag that kills lice in 24-48 hours without chemicals Warranty: 1-Year for peace of mind Compatible With: MP3 Players, Cell Phones, Tablets/eReaders, Computers (Mac & PC), CD Players, Stereos, TVs, and most Gaming Systems. The Personal On-Ear Stereo Headphones offer exceptional value, making them the perfect choice for schools, libraries, and personal use. With reliable sound, comfortable wear, and essential hygiene protection, these headphones ensure your students and family enjoy a focused, immersive learning experience. Order now to upgrade your audio experience with reliable, budget-friendly headphones! Minimum Order: 5

Built for reliability, comfort and classroom readiness, the EDU‑175 On‑Ear Stereo Headphones bring 40 mm drivers, a durable 8‑foot cable and in‑line volume control together in a student‑friendly design—ideal for learning stations, labs and remote lessons. Why classrooms like the EDU‑175 40 mm speakers deliver deep bass and clear audio for lessons, videos and online learning. Plush, extra‑thick leatherette ear cushions—designed for comfort and easy cleaning in shared‑use settings. Adjustable headband gives a secure, comfortable fit for students of all ages. In‑line volume control simplifies sound adjustments without disrupting class flow. Extra‑long 8‑foot (≈2.4 m) cable gives flexibility at desktops, carts or portable setups. Compatibility The EDU‑175 uses a wired 3.5 mm stereo plug and works with desktops, laptops, tablets (with headphone jacks), media carts and other student‑device systems. It’s fully plug‑and‑play and built for classroom durability. Care & Hygiene In shared learning environments, wipe the leatherette ear cushions and headband with school‑approved disinfectant wipes between uses. Allow parts to dry completely before next use. Keep the audio cable free of tangles and ensure it isn’t knotted or compressed when stored in carts or bins. Tech specs Driver Size: 40 mm Ø speakers. Frequency Response: approx. 50 Hz – 20,000 Hz. Impedance: 32 Ω. Cable Length: 8 ft (~2.4 m). Plug: 3.5 mm stereo (single plug). Adjustable Headband: yes, all‑ages fit. In‑line Volume Control: yes.

EDU‑255 Dual 3.5 mm PC Headset (On‑Ear Stereo + Mic) delivers crystal‑clear audio and reliable voice pickup for desktop setups with separate mic and headphone jacks. Featuring color‑coded dual plugs, a noise‑canceling mic, plush leatherette cushions, and an 8‑ft cable, it’s built for everyday classroom and computer lab demands. Choose Your Connector (EDU‑255 Series) EDU‑255 — Dual 3.5 mm plugs (mic + headphones) for PCs with separate ports EDU‑255 USB — USB version for Chromebooks / desktops with USB only EDU‑255M — Mobile TRRS single plug version for tablets / phones Key Features Dual‑plug compatibility: works with PCs having separate mic and headphone jacks Noise‑canceling microphone with internal windscreens and swivel boom Plush, wipe‑clean leatherette cushions and adjustable on‑ear fit Extra‑long 8‑ft shielded cable for flexibility at student stations In‑line volume control for quick audio adjustment Stereo 40 mm drivers tuned for voice and media content Technical Specifications Type: On‑ear stereo headset with microphone Speakers: 40 mm stereo drivers Microphone: Noise‑canceling with windscreen, rigid boom & swivel Controls: In‑line volume knob Cable: 8 ft (shielded) Connection: Dual 3.5 mm plugs (color‑coded mic + audio) Comfort: Leatherette cushions, adjustable headband} SKU: EDU‑255

EDU‑255 USB On‑Ear Stereo Headset with Mic — In‑Line Volume delivers clear audio and reliable voice pickup via a single USB‑A plug. With soft, wipe‑clean cushions and an adjustable headband, this headset is designed for daily classroom use. Choose Your Connector (EDU‑255 Series) EDU‑255 — Dual 3.5 mm (mic + audio) for desktops with separate audio jacks EDU‑255 USB — This model: USB‑A plug for Chromebooks/desktops EDU‑255M — TRRS single plug (audio + mic) for tablets, phones, etc. Key Features USB plug‑and‑play: quick setup with no driver install required In‑line volume control gives students easy access to adjust output Built‑in microphone captures voice for testing, calls, or learning activities Comfortable design: padded headband and wipe-clean cushions School‑tough cable: durable and tangle‑resistant for heavy use Technical Specifications Type: On‑ear stereo headset with microphone Connection: USB‑A plug (USB audio + mic in one cable) Controls: In‑line volume knob Cushions: Wipe‑clean, comfortable material Headband: Adjustable and padded Cable: Durable, tangle-resistant classroom‑ready cable Warranty: 1‑year limited warranty for school / institutional use

EDU‑255M Mobile Headset — 3.5 mm TRRS, On‑Ear Stereo delivers plug‑and‑play simplicity and reliable performance. With a single 3.5 mm TRRS jack for both audio + mic, inline microphone & volume, and comfortable wipe‑clean cushions, it’s ideal for students using laptops, tablets, or mobile devices. Choose Your Connector (EDU‑255 Series) EDU‑255 — Dual 3.5 mm (mic + audio) for desktops with separate ports EDU‑255 USB — USB‑A version for Chromebooks & desktops This model (EDU‑255M) — Mobile TRRS single plug version for combo jacks Key Features Single jack simplicity: 3.5 mm TRRS for both mic & audio — no Y‑adapter needed Inline microphone & volume control for clear communication and easy adjustment Wipe‑clean leatherette cushions and padded headband for student comfort Durable classroom cable designed to resist wear and tangling Stereo audio tuned for speech and learning content Technical Specifications Type: On‑ear headset with mic Connection: 3.5 mm TRRS (single jack for audio + mic) Controls: In‑line microphone & volume Cushions: Wipe‑clean leatherette, replaces easily Headband: Adjustable, padded for all ages= Cable: Durable, tangle‑resistant classroom cable Warranty: 1‑year limited (school / institutional use)

EDU‑375 Over‑Ear Stereo Headphones are built for classroom environments where audio clarity and student focus are key. With large over‑ear cups that block ambient noise and replaceable cushioned pads, these headphones deliver both comfort and performance. Key Features & Benefits 40 mm drivers deliver deep, clear audio for multimedia lessons Large circumaural cups reduce up to **75%** of background noise Plush, extra-thick leatherette ear cushions — easy to clean & replace Adjustable dual headband for a comfortable fit across ages In-line volume control on the cable for quick adjustments Extra-long 8 ft cable with color-coded 3.5 mm plug Certified safe for use by children (meets U.S. Consumer Product Safety Commission standards) Technical Specifications SKU: EDU‑375 Speaker: 40 mm drivers Cup design: Over‑ear (circumaural), passive noise reduction Cushions: Replaceable, leatherette padding Cable: 8 ft straight with in‑line volume control Plug: Color-coded 3.5 mm stereo Noise Reduction: Up to 75% ambient noise attenuation} Warranty / Safety: Certified safe for use by children

The EDU-455 Over-Ear Stereo PC Headset is designed specifically for education environments, offering superior sound quality, noise-canceling features, and ultimate comfort for all-day wear. Whether used for virtual learning, video conferencing, or multimedia use, this headset provides crystal-clear audio and exceptional noise reduction to help students and educators stay focused. Pick the right connector This headset connects via dual 3.5mm 3-pin plugs (one for headphones, one for microphone), ensuring compatibility with a wide range of PC devices. Why classrooms like EDU-455 Superior Noise-Canceling Microphone: Equipped with a proprietary noise-canceling microphone and internal windscreens, the EDU-455 ensures clear, distortion-free communication, even in noisy environments. Perfect for online lectures and interactive classroom sessions. Immersive Sound Quality: The 40mm speakers provide rich, deep bass and clear audio, ensuring you never miss a word during important calls or educational content. Experience premium sound that enhances focus and learning. Noise Isolation for Focused Learning: Large circumaural (over-ear) cups reduce up to 75% of background noise, creating a distraction-free environment ideal for study, work, and collaboration. Comfortable & Adjustable Fit: The plush, extra-thick leatherette ear cushions are soft, replaceable, and easy to clean, ensuring long-lasting comfort even during extended use. The adjustable dual headband provides a secure, customized fit for all users. Durable, Heavy-Duty Build: Featuring a rigid microphone boom and swivel for durability and flexibility, the EDU-455 headset is built to withstand daily use in a classroom or professional setting. User-Friendly Design: With an extra-long 8-foot cable, in-line volume control, and dual color-coded 3.5mm plugs, this headset offers convenient, hassle-free use with PC devices, making it ideal for both students and educators. Child-Safe & Certified: This headset is certified safe for children, meeting all safety standards set by the United States Consumer Product Safety Commission, ensuring peace of mind for parents and teachers alike. Compatibility Windows: 8, 8.1, 10, and 11 Mac: OS X 10.5 and higher Devices: PCs with dual 3.5mm audio and microphone jacks Care & Hygiene Keep the headset clean by wiping it with a dry cloth. Avoid exposure to liquids and store in a cool, dry place when not in use. Tech specs Type: Over-Ear Stereo PC Headset Microphone: Noise-canceling with internal windscreen Speakers: 40mm drivers with deep bass sound Ear Cushions: Extra-thick leatherette, replaceable Headband: Dual adjustable for a comfortable fit Volume Control: In-line for easy adjustment Cable Length: Extra-long 8-foot cable Connectors: Dual 3.5mm 3-pin plugs (headphone and microphone) Compatibility: PCs with dual 3.5mm audio and microphone jacks Safety Certification: CPSIA-certified for use by children

The EDU-455 USB Over-Ear Stereo Headset is designed specifically for education environments, offering superior sound quality, noise-canceling features, and ultimate comfort for all-day wear. Whether used for virtual learning, video conferencing, or multimedia use, this headset provides crystal-clear audio and exceptional noise reduction to help students and educators stay focused. Pick the right connector This headset connects via USB, ensuring compatibility with a wide range of devices including Windows PCs, Macs, and Chromebooks. Why classrooms like EDU-455 USB Proprietary Noise-Canceling Microphone: Equipped with an internal windscreen, the noise-canceling microphone ensures clear voice capture, minimizing background interference for better communication in noisy environments. Heavy-Duty Rigid Boom & Swivel: The rigid microphone boom is designed for durability and flexibility, allowing for precise microphone placement. The swivel feature makes it easy to adjust and find the perfect angle for clear, hands-free communication. Deep Bass, Crystal-Clear Audio: Featuring 40mm speakers, this headset delivers deep bass and clear, crisp sound, making it ideal for online classes, multimedia, and entertainment. Effective Noise Reduction: The large circumaural (over-ear) cups reduce up to 75% of background noise, allowing for a more immersive listening experience and better concentration, whether you're learning or teaching. Comfortable and Replaceable Cushions: The extra-thick leatherette ear cushions are soft and easy to clean, providing a comfortable fit for long listening sessions. These cushions are also replaceable, ensuring the headset remains in great condition. Adjustable Dual Headband: The adjustable dual headband ensures a snug, comfortable fit for all users, making it perfect for both adults and children. Extra-Long 8-Foot Cable with External USB Sound Card: The 8-foot cable provides plenty of room for movement, while the built-in external USB sound card ensures superior audio performance with a USB plug for easy connectivity. Certified Safe for Children: The EDU-455 headset is certified safe for use by children in accordance with the United States Consumer Product Safety Commission. Compatibility Windows: 8, 8.1, 10, and 11 Mac: OS X 10.5 and higher Chromebooks: Compatible with USB ports Care & Hygiene Keep the headset clean by wiping it with a dry cloth. Avoid exposure to liquids and store in a cool, dry place when not in use. Tech specs Type: Over-Ear Stereo USB Headset Microphone: Noise-canceling with internal windscreen Speakers: 40mm drivers with deep bass sound Ear Cushions: Extra-thick leatherette, replaceable Headband: Dual adjustable for a comfortable fit Volume Control: In-line for easy adjustment Cable Length: Extra-long 8-foot cable Connector: USB plug with built-in external sound card Compatibility: Windows PCs, Macs, and Chromebooks with USB ports Safety Certification: CPSIA-certified for use by children

The EDU-455M Over-Ear Stereo Mobile Headset is designed to provide high-quality audio for educational environments. With its noise-canceling microphone and comfortable over-ear design, it's perfect for students and educators seeking clear communication and immersive sound. Pick the right connector This headset features a single 3.5mm 4-pin TRRS plug, ensuring compatibility with a wide range of devices including tablets, laptops, and smartphones. Why classrooms like EDU-455M Noise-Canceling Microphone: Minimizes background noise for clear communication. Immersive Sound: 40mm speakers deliver deep bass and rich, full-range sound. Over-Ear Design: Reduces up to 75% of surrounding noise, helping students stay focused. Comfortable Cushions: Plush, extra-thick leatherette ear cushions are easy-to-clean and replaceable. Adjustable Headband: Dual adjustable headband ensures a secure, customized fit. In-Line Volume Control: Allows users to adjust volume levels effortlessly. Versatile Compatibility: Works with a wide range of devices, including iPad®, MacBook®, and most smartphones. Durable Build: Designed to withstand the rigors of classroom use. Certified Safe: CPSIA-certified for safety, ensuring it meets all required safety standards for use by children in educational settings. Compatibility Windows: 8, 8.1, 10, and 11 Mac: OS X 10.5 and higher Devices: Tablets, laptops, and smartphones with a 3.5mm 4-pin TRRS jack Care & Hygiene Keep the headset clean by wiping it with a dry cloth. Avoid exposure to liquids and store in a cool, dry place when not in use. Tech specs Type: Over-Ear Stereo Mobile Headset Microphone: Noise-canceling with internal windscreens Speakers: 40mm drivers with deep bass sound Ear Cushions: Plush, extra-thick leatherette, replaceable Headband: Dual adjustable for a comfortable fit Volume Control: In-line for easy adjustment Cable Length: Extra-long 8-foot cable Connector: Single 3.5mm 4-pin TRRS plug Compatibility: Tablets, laptops, and smartphones with a 3.5mm 4-pin TRRS jack Safety Certification: CPSIA-certified for use by children

The EDU-USB External USB Headset Adapter is designed to provide high-quality audio for educational environments. By bypassing your computer's built-in sound card, it delivers clear, low-noise audio ideal for students and educators alike. Pick the right connector This adapter is perfect for devices with USB ports, offering a simple plug-and-play solution without the need for additional drivers. Why classrooms like EDU-USB Improved Audio Quality: Delivers CD-quality digital sample rates for clear sound. Plug-and-Play Setup: No drivers needed; just plug into any USB port. Compact Design: Small form factor for easy portability and storage. Broad Compatibility: Works with all current Andrea Communications headsets and microphones, as well as any legacy peripherals. Durability: Built to withstand the rigors of classroom use. Compatibility Windows: XP, Vista, 7, 8, 8.1, 10 Mac: OS X 10.5 and up Care & Hygiene Keep the adapter clean by wiping it with a dry cloth. Avoid exposure to liquids and store in a cool, dry place when not in use. Tech specs Type: External USB audio adapter Audio Quality: CD-quality digital sample rates Connectors: Color-coded jacks for easy connection Indicators: Power On/Data and Transmit LED indicators Compatibility: Works with all current Andrea Communications headsets and microphones, as well as any legacy peripherals

The Califone LM319 Electret Lapel Microphone is a lightweight, hands-free microphone designed for educators seeking to project their voice clearly and effectively across the classroom. Its low-profile capsule and included windscreen and clip make it an ideal choice for seamless integration with Califone's M319 wireless bodypack transmitter. Key Features Hands-Free Operation: Allows educators to move freely without the need to hold a microphone. Low-Profile Design: Compact size ensures discreet placement and comfort during extended use. Clip-On Convenience: Easily attaches to clothing, providing flexibility and stability. Windscreen Included: Minimizes wind noise and plosives, ensuring clear audio capture. Designed for Califone M319: Optimized for use with the Califone M319 wireless bodypack transmitter. Specifications Type: Electret Condenser Polar Pattern: Omnidirectional Frequency Response: 50 Hz – 15 kHz Impedance: 2.2 kΩ Connector: 3.5mm TRS plug Weight: Approximately 0.5 oz (14g) Ideal Applications Classroom Settings: Enhances teacher-student communication by ensuring clear voice projection. Public Speaking: Suitable for lectures, presentations, and events requiring hands-free audio capture. Broadcasting: Ideal for use in radio or video production environments. Care & Maintenance Store in a dry, cool place when not in use. Clean the microphone capsule with a soft, dry cloth; avoid using liquids. Regularly check the clip and windscreen for wear and replace as necessary. We Accept Purchase Orders Tax-exempt schools and districts can purchase via PO or request a quote. Quantity discounts are available for bulk purchases. Please contact us for more information. Quality Assurance Each microphone undergoes rigorous quality control to ensure durability and performance. Our commitment to excellence ensures that every product meets the highest standards for educational use.

Explorer Binaural Headphone - 10 Pack brings high-quality, safe listening to classrooms, libraries, and labs. This bulk pack includes 10 rugged, noise-reducing headphones with built-in volume controls for easy adjustment at each station.Features & Benefits 10 units per pack — perfect for class sets or shared labs Noise-reducing ear cups allow listening at safe volumes Volume control located on the ear cup for student convenience Plastic head strap with recessed wiring to reduce cord stress 3.5 mm stereo plug — compatible with standard jacks Slotted baffles protect internal speakers from damage 3-year educational warranty included Technical Specifications SKU: EH3SV‑10L Pack size: 10 headphones per set Connection: 3.5 mm stereo plug Strap / Headband: Plastic, adjustable, with recessed wiring Warranty: 3 years for school / institutional use

Explorer Binaural Headphone with 3.5 mm Stereo Plug & Volume Control combines rugged simplicity with classroom‑ready features so students can listen comfortably, safely, and independently. Features & Benefits Noise‑reducing ear cups let students listen at safe levels while isolating ambient distractions Plastic head strap with **recessed wiring** helps prevent pinching or damage Adjustable design to fit a wide age range of students Volume control built into the ear cup for convenient local adjustment Replaceable cord with 3.5 mm stereo plug for standard device compatibility Slotted baffles protect internal drivers from damage Backed by a 3‑year warranty for school / institutional use Technical Specifications SKU: EH‑3SV Plug Type: 3.5 mm stereo (single plug) Warranty: 3 years for educational use Price: $20.95 (as listed)