Bluetooth Headphones, FKANT V4.1 Wireless Sweatproof In-Ear Sports Neckband Earbuds with MIC for iPhone Samsung HTC Smartphones and Tablet,Black Wireless Neckband Design: Ear-in earbuds make sure won't fall out while you do exerices, like running, climbing, fishing or skating outdoor sports. Extra-long Battery Life: Music play time: more than 8 hours. Talk Time: more than 10 hours. Standby Time: more than 240 hours. Charging time: 2 hours Easy Carry and Operate: Lightweight and easy to store in your bag or pocket. Press MFB button to turn on, pair and turn off. Voice command:Say "yes" or"no" to pick or reject call. Call,End,Answer,Redial the last number Bluetooth V4.1, Easy pairing , 10 meters (no obstacle) bluetooth range. Built-in microphone, allows to make a hands-free call with your friends.