Grandstream GUV3050 is a cost effective Bluetooth headset — professional wireless audio. Designed for all day use, GUV3050 pairs with any Bluetooth device — pair it to up to 2 devices at once. The stereo headset has call controls and on call indicators built into the headset — convenient. The noise cancelling unidirectional microphone means your voice is clear — HD audio quality. GUV3050 comes with a USB adapter for using the headset with a laptop or PC.