Sports Headphones [Newest Version] Extended Battery Life Wireless Earphones Earbuds Headsets (Bluetooth 4.1, Hands-Free Calling ,Hi-Fi Stereo, Build-in Mic, Noise-Cancelling)-Blue 170MAH Long Battery Life: Latest Bluetooth 4.1 technology with up to 8 hours playing music 10 hours talking. Pair with any Bluetooth Devices:Easy and fast pairing with smartphones, tablets and other Bluetooth enabled music devices; AptX codec provides pure, CD-like high quality sound for compatible devices. Hi-Fi Stereo Sound, Strong Wireless Signal: Built-in HD Microphone with Noise reduction, enable clearer sound from microphone;And you can enjoy skip-free music in a 10-meter working distance, even if use your music devices left/right side, above/below waist. Exercise-proof & Sweatproof Design:100% Guarantee Stable and Comfortable when exercising, running, climbing, driving, skating,camping, fishing and other outdoor sports. Small,medium and big size earhooks included Easy to Use:Features Hands-free Calling,Answer and Redial the last number, Support Yes or No voice control,Making these the most convenient Bluetooth earbuds for running, sports.