Bluetooth Headphones, Grandbeing Wireless Bluetooth V4.1 Stereo Sweat-proof Sports Sweat-proof APT-X Headphone Headset with Mic and Dual Battery for iPhone 6s iPhone 6s Plus and Android Phones, Red Comfortable design and sweat-proof. With ear-hook, not easy to fall. Fit for Exercise, Running, Climbing, Driving, Skating, Camping, Fishing and other Outdoor Sports. Fast connection and simple to use. Bluetooth V4.1, build-in MIC, fast pairing and contorlling. Strong signal allows you to listen music and aswer call as far as 10 meters (No obstacle). Built-in dual rechargeable battery. The bluetooth up to 8 hours playing music. Build-in MIC, allows you to answer phone hands-freely. Compatiable with most smart devices with Bluetooth, such as iPhone 6s, iPhones 6s Plus, Samsung S6 Edge Plus, Note 5, HTC One M9, tablets, etc. Warning tone reminding. You can clearly know the status about the headphone and the phone number of coming call.