Adapter

You or the teacher is trying to hook up a decent set of stereo headphones and your computer doesn’t have the correct 3.5mm jack. The Hamilton Buhl 6” Stereo 3.5mm Plug to 2 Standard 1/4" Phone Jacks Audio Adapter Cable manufactured by Comprehensive is an excellent solution for eliminating this problem. Made from top-quality components, this cable is built to last while delivering superior audio quality in any application. The 6" adapter cable will allow you to connect your mono or stereo headset with a 3.5mm plug directly into these devices that require standard phone jacks (1/4"). The Hamilton Buhl 6” Stereo 3.5mm Plug to 2 Standard 1/4" Phone Jacks Audio Adapter Cable manufactured by Comprehensive is designed for use with any headsets that feature a standard 1/4" phone jack. Features: • Exceptional Value • Comprehensive Reliability • Perfect for everyday use • Molded strain relief • Lifetime Warranty Specifications: Connector 1: 1 x 1/8" (3.5 mm) TRS Male Straight Connector 2:  2 x 1/4" TRS Female Straight Cable Length:  6" / 15.24 cm

This 3.5mm Stereo Jack to 3.5mm Mono Plug Adapter makes it easy to connect stereo headphones or devices to mono-only audio sources, often found in older classroom equipment or language labs. It provides an affordable, plug-and-play solution that helps avoid sound issues and extends the life of your existing audio gear. Why classrooms use this adapter Adapts stereo plugs to mono jacks — no extra equipment needed Reduces compatibility issues during testing or group listening Durable, lightweight, and easy for students to use Ideal for assistive listening systems or older media players Compatibility Use with 3.5mm stereo headphones and devices Works with mono-only classroom tech, including listening centers and test stations Care & Storage Keep in a labeled bag or pouch when not in use Wipe gently with a dry cloth if dust builds up We accept purchase orders Tax-exempt schools and districts can buy via PO or request a quote. Quantity discounts available for bulk purchases. Quality assurance Every adapter is backed by our commitment to quality and classroom-friendly service. Need help finding the right connection? Contact us.

HamiltonBuhl® Deluxe Active Noise-Cancelling Cord — Convert Any 3.5 mm Headphone into a Headset Add clear voice capture to your favorite classroom headphones. This noise-canceling microphone cord converts a standard 3.5 mm headphone into a TRRS headset for Chromebooks, laptops, and tablets with a combo jack. It’s a budget-smart way to enable speaking tasks, language labs, and remote learning without replacing your entire fleet. Key Features Turns headphones into a headset: Inline mic adds voice input while keeping your existing over-ear or on-ear headphones. Noise-canceling mic: Designed to reduce ambient classroom noise for clearer speech on calls and recordings. TRRS single-plug device end: Works with most combo-jack Chromebooks, laptops, and tablets. Quick setup: Plug your headphone’s 3.5 mm plug into the cord’s female jack, then plug the cord’s male TRRS into the device—done. Fleet-friendly: Save budget by upgrading audio capability without buying new headsets. Compatibility Headphones: Any model with a standard 3.5 mm stereo (TRS) plug. Devices: Combo-jack (headphone+mic) ports using CTIA wiring (most Chromebooks, many laptops/tablets). USB-C only? Use a USB-C to 3.5 mm headset adapter that supports mic. USB-A only? Use a USB sound adapter or choose a native USB headset. How to Use (30 seconds) Unplug your headphone from the device. Insert the headphone’s 3.5 mm plug into the cord’s female 3.5 mm jack. Insert the cord’s male 3.5 mm TRRS plug into the device’s combo jack. Select “Headset” (or similar) as Input/Output in device/app audio settings and test the mic. Typical Specs Connections: 3.5 mm female (headphone in) → 3.5 mm TRRS male (to device) Microphone: Inline, noise-canceling Use case: Language labs, speech assessments, video calls, remote learning Cable: Classroom-length with strain relief (varies by batch) Note: Exact cable length and control layout may vary by production batch. Refer to product packaging for any model-specific details. Classroom Tips Label cords and headphones with matching numbers (1–30) to speed handouts/returns. Keep device-safe wipes and spare earpads to extend fleet life. Store sets in racks or bins to avoid cable damage. Compare Your Options Solution Port Mic Best For ANC Mic Cord (this page) 3.5 mm TRRS Inline noise-canceling Upgrade existing headphones for speech AC-155 Mobile Headset 3.5 mm TRRS Boom mic Native headset for combo-jack carts AC-155 USB Headset USB-A Boom mic Desktop/lab USB AE-36 USB-C Headset USB-C Boom mic New USB-C fleets Buying for a class or district? We accept POs and offer volume pricing. Request a quote.

One Adapter, Countless Classroom Uses The USB-C to 3.5mm Headset Adapter makes single-plug TRRS (CTIA) headsets—with microphones—work on USB-C devices. It reliably converts digital↔analog audio for clear playback and voice capture, so students can join assessments, language labs, and read-alouds without changing headsets. Why schools choose it Mic-capable TRRS (CTIA): Supports headsets with a single 3.5mm plug (audio + mic), not just audio-only earbuds. Clear voice pickup: High-quality A/D conversion helps speech sound accurate for apps and recordings. In-line control support: Android: Play/Pause + Vol Up/Down; Apple (USB-C): Play/Pause.* Fleet-friendly: Standardize rooms that moved from 3.5mm to USB-C—no need to rebuy headsets. Classroom-durable: Short, braided tail helps reduce strain at the device port. *Exact button behavior can vary by device/app. Compatibility Devices: Chromebooks, laptops, and tablets with USB-C ports (including many iPads). Headsets: Single-plug 3.5mm TRRS (CTIA) headsets with microphones. OS: Windows 10/11, Android, and most Apple devices with USB-C ports. Fast setup Plug the adapter into the device’s USB-C port. Connect the single-plug TRRS headset. Select the adapter as both Input and Output in the OS/app. Run a 10-second mic test (watch the input meter). Troubleshooting tips No mic input: Grant mic permission to the app; reselect the adapter as the input device. One-ear audio: Fully seat the 3.5mm plug; confirm CTIA wiring; try another port. Inline buttons not working: Behavior varies by OS/app; Play/Pause is most universal. Specifications Plug type: Single 3.5mm TRS/TRRS to USB-C Cord: 4.5 cm nylon braid (short tail) Package: Polybag Compliances: CA Prop 65, CPSIA, TSCA, SOR 2014 (Canada), RoHS, REACH SVHC/Annex XVII, POPS, SCCPs & HBCDD, SPL EN 50332-2, ICES-003 (Canada), CE-EMC, FCC-SDOC Minimum Order: 20 Related accessories TRRS school headsets USB-C headsets Replacement earpads Device-safe cleaners