Feature list:
*High quality voice communication with noise cancellation;
*Comfortable and durable headset;
*Headset speaker volume control;
*Mute，Redial, Flash function;
*Smart design, suitable for the limited working place;
*Headset can move 270 degree and dual side using;
*LED in-use indication, blinks when ringing and lights when calling;
*Flash time 100Ms/600Ms choice;
*Ringer volume hi-low-off adjustable;
*Provide the voice recorder port, can connect to the PC to record;
*Easy installation with power save function, working when connect to the PSTN, ;
*Provide GD500 headset.