B&Ouml;HM Wireless Bluetooth Over Ear Cushioned Headphones with Active Noise Cancelling - B76 NOISE CANCELLING HEADPHONES Let You Enjoy Music, TV, Movies & Games with Rich, Textured Sound & Extra Bass BLUETOOTH WIRELESS Connect to iPhone, iPad, Android, Smart TV & More Via Advanced Bluetooth V4.0; Generous 10 Meter Distance LUXORY OVER EAR HEADSET Cushioned Foam Ear Pads Cup Entire Ear for Up to 16 Hours of Comfortable, Relaxed Listening. Built-In Volume Control Offers Hands-Free Convenience; Effective Noise Cancelling for Up to 8 Hours RETRO HEAD PHONES Attractive Sport Headset with Foldable Design is Great for the Gym, Jogging, Cycling & Long Car Travel ACTIVE AMBIENT NOISE BLOCKING BOHM B76 has Active Noise Cancelling which will cancel most deeper sounds around you. Noise Cancelling function is not as effective with higher, sharper sounds. Buy with confidence! BHM products have a 1 year manufacturer warranty Bluetooth Solution: CSR8635 Bluetooth Version: 4.0 Support Agreement: A2DP, AVRCP, HFP, HSP Operating Distance: 10 Meter Battery: 320mA Charging Time: About 2 Hours Play time: Up to 16 Hours (50% Volume) ANC Working Time: Up to 8 Hours(50% Volume) Noise Reduction Performance: up to 20dB Driver Unit: 40mm Impedance: ANC_OFF-80; ANC_ON-110