ClearLink CL004 - 2.5mm to 3.5mm adapter The CL004 is the perfect solution for connecting your ClearLink and/or CLA7 Neckloop in to your iPods, MP3, Sony Walkman stereo, radio, or any other device that has a 3.5mm audio output! Designed exclusively for ClearSounds products, the CL004 isolates and protects the microphone during use. Eliminate carrying or buying multiple headsets! Adapter that converts the ClearSounds 2.5mm connector to a 3.5mm audio connector Ensure maximum performance Simple innovative and functional design Durable, compact, and lightweight