Featuresr bluetooth headset compatible devices with bluetooth such as mobile phoner connect to 2 phones simultaneouslyr built in microphone allows you to have wireless telephone conversationsr the product will tell your number then coming a call and dial the last numberr power display only for iphonexiaomir with csr8615 chip and blutooth 40 support hd call and long time standby can be simple pairing safelyr the bt 156 is a perfect headset to help you keep your hands free whether yo