Docooler Wireless Stereo Headphone Bluetooth 4.1 In-ear Earphone Sweatproof Voice Prompt Headset Hands-free with Mic Brown for Android / iOS / Windows Phone Tablet PC Laptop With Bluetooth 4.1 Chip, it brings you stable signal, high and wireless transmission. With built-in microphone, it performs HD stereo sound quality which is clear and loud while listening to music or pick up calls. With CVC 6.0 Noise Reduction technology, it shield background noise to make conversation more clearly. Compatible with almost all Bluetooth-enabled mobile devices such as, for iPhone6 6Plus 5S, for Samsung Galaxy S5 S4 S3 / Note 4 3 2, for HTC One, Tablet PC, Laptop, etc. With built-in 50mAh Polymer Battery, it offers up to 3 hours of continuous music and 4-6 hours of talking time. Standby time is about 120 hours. Hands-free call help your avoid the danger when driving. With multi-point connection, you can easily switch between calls and music, you will not miss any incoming call while listening to music. Remind you your phones current status like power off/on, pairing, etc. Whats more, with number reporting, you will know the somebodys incoming call while driving. Simple operation, one button with multi functions, like on/off switch, answer, end, reject, dial a call. It convenient and easy for everybody no matter the old or the young. Super mini size, fashionable and lightweight design is suitable for driving, climbing and doing gym, etc. Sweatproof prevents earphone from being damaged by sweat, enjoy your sports with your sweat while sporting.