Features:

Voice answer and hang up (say yes or NO to answer or refused to answer directly)Caller number broadcast voice prompts: is turned on / turned off / connected / disconnected / missed calls, etc.Stereo songs: adjust the volume / switch down song / Pause / Play.One with two, dual standby: simultaneously connect two phones or tablet PCsHD calls and long standby 4.0 version of British imports CSR chip: the most advanced versionUniversal: supports any phone connection regardless of what brand you can use as long as there is Bluetooth