Bluetooth Headphones Headset Wireless Bluetooth 4.0+APTX Sport Stereo Universal Headset Headphone for Iphone iPad Samsung LG (Silver) Retractable Earbuds :Easy to adjust the length of the line by only press a button ; the combination of human ear radian design and become,Comfortable and soft ,feel better sound quality; Latest upgraded Bluetooth 4.0+APTX Headphones : Low-power & Low-latency ,provides high-fidelity and stereo music; Highest standards of fidelity audio transmission technology, motion-shaped dual-channel true stereo ; Perfect Sport Wireless Headphone : Sweat-proof and rainproof ; Light weight, flexible neckband design ;Super long standby time ---14 hours for music, 12 hours for talking ; Support power status broadcast, real-time silent ;Built-in high quality microphone support various phone calls (by Wechat,Skype,MSN); Multi-functional key allows you power on/off, answer/hang up/reject the call, pause and play. Easy to operation; Micro USB Rechargeable ; Incoming phone vibrate function : your phones will vibrate when someone is calling you. Please press(call button) to answer the phone ;Please Shortly press(call button) to reject the phone ;