JOYNOLOGY Bluetooth headphones V4.0 Sweatproof Wireless Sports Headphones In-ear Stereo Earbuds Headsets with Mic Talking for Running Exercise GYM Bluetooth V4.0, Sweat Proof, Range 10 meters Working time: 5 hours, Stand by: 150 hours Mini Size, super light weight Compatiable for iPhone 6S, 6S Plus,Samsung, Android Smartphones