ALLIMITY Bluetooth Headphones Wireless in Ear Earbuds Noise Cancelling Sweatproof Sports Headset with Mic for iPhone iPad Samsung Sony LG Smartphone Watches Premium Sound: This Bluetooth in-ear headphones offers incredible crystal clear sound no matter your taste in music or answering a phone call; and you will never miss an in coming call phone with its voice prompt function. Noise Cancelling: Built-in microphone, adopting CVC 6.0 Noise reduction tech, This wireless bluetooth headphones can intelligently filter ambient noise and reduce background noise, offers incredible sound quality, you can focus on your favorite music and enjoy yourself when you are at home, in the office, in the workout places etc. Comfortable Wearing and Secure Fit: This headphone comes with soft and ergonomic design earhooks and comfortable rubber-made ear plugs to fit different face and ears shape, comfortable wearing and Ideal use as sports headphones, exercise headphones, gym headphones, jogging headphones, running headphones, cycling headphones, hiking headphones, bike headset etc. Bluetooth 4.1 and Easy Pairing: This wireless headset use advanced Bluetooth version 4.1, easy to pair with iPhone, iPad, Samsung, Sony, HTC, Android Cell Phones, Windows Phones, and most Bluetooth enable devices. Reliable Battery Life: Built-in Rechargeable Li-ion Battery, long life span; Talk time up to 7 hours and play time up to 8 hours, standby time up to 240 hours with every 2 hours full charging. important: if the wireless headphones is disconnected once for a while, please charging it fully and then repair or turn it off and repair it. the problem will solved. any questions, please feel free to contact us, we will try our best to help you.