ALLIMITY Bluetooth Headphones Wireless in Ear Earbuds Noise Cancelling Sweatproof Sports Headset with Mic for iPhone iPad Samsung Sony LG Smartphone Watches Our in-ear headphones offers incredible crystal clear sound no matter your taste in music or answering a phone call Built-in Microphone, so you can answer phone calls without reaching your phones, set your hands free; Adopting CVC 6.0 Noise reduction tech, This earphones can intelligently filter ambient noise and reduce background noise, so you can have a clear conversation Bluetooth 4.1 Headphones and Easy Pairing: Using advanced Bluetooth 4.1, easy to pair with iPhones, iPad, Android Cell Phones, Windows Phones, IOS phones and most Bluetooth enable devices This wireless earbuds is sweat-free with IPX5 water protection, comes with anti-slip earhooks to keep it from falling down, Secure fit and comfortable to wear, ideal use as sports headphones, exercise headphones, gym headphones, jogging headphones, running headphones, cycling headphones, hiking headphones, bike headset etc Built-in rechargeable Li-ion Battery enable talk time up to 7 hours and 8 hours playback time, ultra long standby time up to 240 hours with every 1 to 2 hours full charging.if it was disconnected once for a while, please charge it fully and then repair it or turn it off and then repair it, any questions, please feel free to contact us, we will try our best to help you.30 days money back and 180 days warranty! thanks!