Listen to your favorite tracks in style wirelessly with Naxa's BACKSPIN Bluetooth Wireless Headphones (NE965). These sleek, fashionable headphones are made to be both stylish and practical, providing a soft ear cup cushioning that comforts your ears for prolonged usage. With a 40 mm driver and an impedance of 32 ohms, these headphones pump out music with a highquality, peerless audio. The Bluetooth 4.2 functionality allows you to connect and control your Bluetoothenabled devices, in such ways as calling out, redialing, and volume control. The builtin rechargeable Liion battery holds up to 6 hours of music playback.Wireless on ear headphones. Call/Play/Volume control with Bluetooth enabled devices. Rechargeable Liion battery provides up to 6 hours of play time. Driver Diameter: 40 mm.Frequency Range: 20 20,000 Hz. Sensitivity: 110 +/ 3 dB Impedance: 32 ohmsBluetooth 4.2 Power: Rechargeable battery (200 mAh) Accessories included: Stereo headphones, charge cable Available colors in Black, Blue, Red.