Features: Has streamlined appearance, Pickily Selected from many design drafts. Stereo BT 4.1, strengthen the data transmission, more stable signal. Ergonomic T-light ear adapter ensures comfort of long time of listening. Superb bass resonance with 3rd generation in-ear earphone, wind noise reduction, sweat-proof. . Wind Noise Reduction: Electronic technology blocks out wind noise, improves the calls clearly. Sweat-proof: Effectively prevents sweat and rains interfere with headset operation. 6th generation CVC noisy reduction. High-performance and microphone transmits high fidelity and clear sound to your ears. Supports hands-free call and voice prompt. Supports Voice Command: Say Yes to answer the incoming call, and say No to reject the incoming call, add convenience to your life. Enjoy music wirelessly, easy to switch between calls and music, you will not miss any incoming call whilst listening to music. Support multipoint connections: Can simultaneously connect two mobile phone. The included two pairs of silicone earmuffs with different sizes for comfortable wear and can greatly insulate the noise around you, and you can choose the optimal earmuff from the three earmuffs to enjoy the wonderful sound quality. Easily control playing / pausing, adjusting the volume, previous/next songs, answering / rejecting / ending an incoming call and redialing the last number. Equipped with a micro USB charging port and can be easily powered via its Micro USB port . Compatible with almost all BT-enabled mobile devices such as, for iPhone6 6Plus 5S, for Samsung S5 S4 S3/Note 4 3 2, for HTC One, Tablet PC, Laptop, etc. Streamlined appearance, Mini size, portable, lightweight and suitable for sport such as jogging, mountain-climbing and other sports. Note : The earphone is sweat proof, can not be used for swimming.