The freedom to roam. There is nothing like strapping on a pair of high-fidelity wireless headphone. The DR-BT50 stereo Bluetooth headphone features 40mm driver units that deliver crisp treble and dramatic bass for superior audio accuracy. And an auranomic inner earcup design creates an excellent fit and allows for enhanced audio quality. This rechargeable set of headphone also provides you with approximately 17 hours of music playback time on a single charge, so you can enjoy your favorite music even longer. Remote control of play, stop, fast forward and rewind on the earpiece is included for your convenience.