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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

Some of the headphones do not have any volume control, but we all want the convenience of adjusting the level of our headphone's volume. The Volume control adaptor enables you to enjoy listening or talking with your earphone without having to remove it when you need to adjust its volume or switch songs. The Volume Control Adaptor is designed for PC Headphones without volume controls. It gives you the option of adjusting the volume of your headphones by turning the little dial on the side of your computer. The volume control adaptor is perfect for language learning, listening programs, etc. Features: Adjust the volume on existing headphones with a standard 3.5mm connection Plugs directly into cord for easy volume adjustment Gives each student ability to select the comfortable volume level Plug and Play No Software Required Designed for School Headphones One Year Warranty