Innoo Tech Bluetooth Headphones V4.1 Wireless Sport Headset Stereo Earbuds Sweatproof In-Ear Noise Cancelling Earphones with Mic Compatible with iPhone 6 6 plus 5S 4S Galaxy Android Phones &hellip; iphonr 7 fantastic Sound --- Built-in HD microphone and CVC 6.0 audio enhancement and noise cancelling technology Stable Connections -- Bluetooth 4.1 ensures a powerful, stable connection up to a distance of 10 meters. Ergonomic design makes the earphones comfortable to wear and secure when you are exercising. A smart one-to-two function allows two devices to be paired the earphones simultaneously Long Stand-By --- The earphones have a high-quality polymer battery that gives up to 175 hours of standby time. The earphones can provide 5-7 hours talk time from a 2 hour charge Simple and Convenient --- A simple user interface allows you to take control of your music or phone calls while you are doing exercise. The behind the neck design means you can avoid tangles that might restrict your movement What You Get -- Wireless headphone, user manual, charging cable and 6 earbuds. LIFETIME WARRANTY.