Bluetooth Headphones, FKANT V4.0 Bluetooth Headphones Wireless Sport Sweatproof Stereo Earphones Workout Earbuds Headsets with MIC and Volume Control for iPhone Samsung HTC Smartphones and More Advanced Technology: Latest CSR Bluetooth V4.0 chipset, more steady signal transmission and lower power consumption, ensures that you could answer your phone in a wireless and hands-free way under 10 meters (Depends on environment). CVC6.0 noise canceling technology, allows you to talk with your friends clearly with HD mic, even you are in noisy street or crowed shopping mall. Born for Sport: Behind-In-Ear design with sweatproof earhooks. You could focus on your workout, exercise, running, yoga while listening music. The earbuds stay in place and you dont need to worry about it falling out of your ears. Additional pair of ear-hook in package will strengthen this performance. With S/M/L three pairs of earcaps, you will always find one comfortable pair to your ears. Buckle and clip accessories to fix the cable and will make less microphonic. Easy to Use: Voice Prompt function, enables you to know using status right now; Remote Control near your left ear, supporting to Volume + / - , Next/Previous song, Pause/Play, Answer/ Reject; Support automatically reporting in-coming phone number, never miss a call; Support to connect two Bluetooth devices simultaneously; Support iOS battery monitoring. Long Battery Life: Build-in 55mAh rechargeable Li-ion battery, providing stand-by time up to 200 hours ,or talking time up to 5 hours, or music-playing time up to 4 hours after fully charged (Depend on Volume). One Hour High-speed quick charging supported. Fully Compatibility: Free access to all Bluetooth devices, such as iPhone 6s Plus / 6s, iPhone 6 Plus / 6, iPhone 5s / 5, iPhone 4s /4 , iPad Air / iPad Mini; Samsung Galaxy S6 Edge Plus / S6 Edge / S6 / S5, Note 5/ 4 /3 /2, Samsung Tablets ; HTC A9 / M9 / M8 / M7 ; Google Nexus 6P, etc.