LTB Q-BEAN-UO Audio Systems Wireless Headphone USB PnP (Orange) USB Orange Wireless Headphone Link True Digital Non Compressed Audio 2.4GHz Transmitter for PC and Mac/ Absolutely Noise Free Digital Wireless Range up to 30 Meters 1.13 Lbs (WxLxH) 1.74" x 3.0" x 0.98"