U10 DA80 совместим с Plantronics QD коннектор к USB-адаптеру регулятором громкости отключением звука для динамика и

Compatible with all QD plugs like Plantronics. NOT FOR GN headsets as the photo shows.
Plug-and-play USB interface - no drivers needed.
Volume adjuster for Speaker.
Mute for Speaker and Mute for Microphone separately.
Cable Length: about 71 inches