VOSOVO Bluetooth 4.1 Portable Mini Lightweight Wireless Sports headsets Sweatproof Bluetooth Earbuds for iPhone 6, 6 Plus, 5, 5c, 5s, 4s, iPad, Samsung Galaxy S6, S5, S4, S3, Note 4 3, HTC, and more. VOSOVO Bluetooth Headphones equipped with Bluetooth 4.1 technology and a microphone allows you to listen to music and answer calls from your cell phone as far away as 33 ft/10 m. With a built-in rechargeable battery, the VOSOVO Bluetooth earbuds can last up to 4.5 hours of talk time or 175 hours standby. Control all functions from your earbuds. Volume up and down, Play, Pause, and answer calls all from the earbuds. Sweat-proof, light weight and ergonomic design to enhance your comfort; comes with interchangeable earbuds and ear hooks for secure and personal fit when walking or exercising. Works with iPhone, Android Smartphones, tablets, and other Bluetooth enabled devices.