The Plantronics Voyager 8200 UC is a wireless stereo headset for the mobile executive. It features wireless Bluetooth technology, USB BT600 USB Adaptor and 3.5mm Audio Cable to provide connectivity to Bluetooth devices, PC Softphones and other personal devices. Audio features include four dual paired microphones with Active Noise Cancellation and DSP technology. Voice prompts alert you to when mute is activated and Smart Sensor Technology allow you to answer and end calls by putting on / taking off the headset. Features: Corded Telephone Headset Crystal Clear Calls 208769-02 Specifications: Dimensions: H:6.0 x W:16.0 x D:20.0 cm Colour: White Guarantee:2 years Material: Plastic Model Number: 100006421