Eaglewood Bluetooth Headphones, V4.1 Wireless Earphones Sports Stereo Sweatproof Earphones for Running Gym Exercise Hands-free Calling, Noise Cancelling Headphones SECURE FIT - The special Behind-The-Head wearing style holds your Buds in place during rigorous workouts. The flexible Memory-Wire adapts to the size of your head and helps provide a better listening experience. UPGRADED TRUE HD HIGH FIDELITY SOUND - Featuring latest Bluetooth 4.1 CSR technology and state of the art acoustic components that produce good sound quality, you will love the sounds. 2 WAYS TO CARRY AROUND: Features good adhesion and shape memory, the Bluetooth headphones can surround your neck firmly or roll up it and store in your pockets/ bags without tangling when not in use. LONG BATTERY LIFE - Up to 320 hours standby time and 8-10 hours talking/listening time. You never give up easily in the sports, and worry about power off in the travel. WITH EASY TO USE BUTTONS - Allows Skip/Play/Pause on your music tracks as well as all phone use without reaching your phone. It can be connected with two devices simultaneously. Super quick pairing with android, IOS and all other bluetooth devices.