Highlights Wireless Play/ Handsfree calls/Voice Prompt Coming Calls/ IOS Battery Display/ Smart Power off/ Rechargeable electricity It is a new Sweat-proof Bluetooth 4.2 +A2DP Wireless Headset Sport Earphone headphone---The Newest advanced Bluetooth 4.0 technology (8 times the bandwidth than that of the Bluetooth 2.1 standard). Moreover, this item has the best Audio Performance. It can...