[Comfortable And Secure Fit Design]: With Ergonomic designed ear hooks?? secure it stay in your ear ??you will never worry about the ear buds to be falling off while your???re Running?? Jogging?? Hiking?? Cycling?? and impact Sports.</br>[Bluetooth 4.1+aptx]: Supports two connected devices simultaneously and allows to automatically connecting after paired successfully for the first time?? high-fidelity stereo sound quality with aptx codec. The Headphones are compatible with most cell phones?? iPhone and Android.</br>[Sweat Resistant]: Built for your active lifestyle?? the ea