Bluetooth Headphones, Wireless Bluetooth Earbuds Noise Cancelling Headset Sweatproof and Lightweight Bluetooth Earphones with Microphone Sports & Exercise Suitable for IOS & Android Devices(White) Bluetooth 4.1 + APT-X audio decode technology,it can connect with 2 devices in the same time Simple-to-use: control all functions of your music (volume, sound, song selection) and calls from your phone via our simple-to-use user interface on the headphones themselves. Comfortable and secure design fits perfectly to your ear Long battery life,7 hours talking/playing time, and about 175 hours standby time. Privding voice prompt and vice answer,and don't worry about missing any calling.