... remote control capabilitiesSupport Bluetooth specification V2.1 version, backwards compatible with V1.1, V1.2 version ; Support automatic switching to ... answer phone-call ,Play,Pause,Forward & backward selections, and with the end number re-dial function. Up to 10 meters ... wear,built-in the stainless steel head beams and Wrapped with the green rubber material, can be free expansion , Suitable ...