Style: Headband Connectors: USB Package: Yes Use: Portable Media Player Function: Bluetooth,Noise Cancelling,Microphone Communication: Wireless Model Number: mini A8 color: black,white,silver,gold bluetooth: V4.0 Talking Time: about 7 hours Charging time: about 2 hours voice prompt: english use: for smart phone as Iphone 5/6 plus Samsung HTC huawei xaomi Tablet PCs Unit Type: piece Package Weight: 0.150kg (0.33lb.) Package Size: 20cm x 18cm x 10cm (7.87in x 7.09in x 3.94in)