1. Eliminate tangled wires and cord clutter forever 2. Fashionable appearance, smart model portable. 3. With volume control button. 4. Use it wirelessly with your Bluetooth mobile phone梒ompatible with all major brands 5. noise-canceling microphone to get great sound 6. graceful appearence Product specification: 1.Technology: Bluetooth v1.2 compliant(compatible with bluetooth 1.1) 2. Talk time up to five hours 3. Standby time up to five days 4.Broadcasting range of 10m(30inches) 5.Weight:about 17g. 6.Chipset:CSR 7..Radio Performance:Class II