Beyution Bluetooth 4.1 Headphones, Hi-Fi Stereo, Noise Cancelling, Over-ear wireless Headset for Traveling, Resting, Reading, Watching, Walking New Bluetooth 4.1 Headphone stereo Bluetooth for music play and use as a headset with the built-in mic Works with any iPhone 5/4S/4/3, iPad; Samsung Galaxy 4/3; HTC; NOKIA; HUAWEI; and ALL Android phones; MID; Tablet devices that are Bluetooth enabled This is Bluetooth 4.1 wireless bluetooth headphone---The Newest advanced bluetooth 4.0 technology(8 times the bandwidth compare over the bluetooth 2.1 standard)! built in Li-battery, Playing time up to 8 hours; and continue talk time up to 6-7 hours Best Audio Performance - Stereo - Wireless Bluetooth 33 feet distance - Over the head - Beyution