Desk Phone Only Model, Not for Computer PC Compatible with Panasonic Phone models : Only KX-NT 553, KX-NT 556, KX-DT 543, KX-DT 546, KX-HDV 230The INNOTALK Pioneer wireless headset allows you to roam your office while you talk with up to 300 feet(May be reduced by environment) of range to roam your office. Included Electronic Hook Switches (EHS) allows you to answer and hang-on a call remotely. You'll improve productivity as you're able to gather information throughout your office while continuing to talk. * Noise Cancelling Mic * Digital Signal Processing makes clear sound quality * Fast battery charging * Incoming call notification * On-call illumination * Mute button on base and headset unit * 2 wearing styles as standard ear-hook, surfeit headband * Changeable headset color - Black and Wine color * Max 8 Hours Talk time will be reduced when operating in high speaker volume or Calls at a long distance, in a state such as a radio wave blocking environment.