- Plantronics convertible headset- Convertible over-the-ear or over-the-head style- 2.5mm plug- For mobile and cordless phones (Samsung, Kyocera, Audiovox, Motorola)- In-line volume and mute control- Talking volume control - Microphone volume switch for optimal voice transmission- Hearing aid compatible- Noise canceling microphone- 1 Year manufacturer's warranty- BlackPLM175C