This Geek Squad Certified Open Box product: Has been thoroughly tested and certified by a Geek Squad agent Is in mint condition and verified to be cosmetically flawless Includes a full warranty and all its original accessories Qualifies for Best Buy's no-hassle return policy Product Information: The supra-aural aka on-ear headset features Bluetooth wireless technology Listen to deep lows and euphoric highs with a frequency range of sound from 20 Hz-20 kHz Great for Audio/Visual Labs, Assisted Listening Systems and more that have a Mono jack for non-stereo use Stay connected smoothly with a wireless range of 100 ft (30.48 m) Dance to your favorite tracks and never worry about the wires getting in your way with these wireless Bluetooth Headset