Systene Clear Sound High Bass Touch Two Stereo Wireless Bluetooth Earphone with Mic - Black Features: 1.Bluetooth V4.1,Binaural headphone, can be used in dual and single. 2.Unique design fits your auditory meatus perfectly 3.HD microphone make call clearly and loudly 4.Intelligent charging box provides fast charge, worry free for endurance 5.IPX5 waterproof sweat proof,Call,Music,Anti-noise,Comfortable Wearing, Hands-free,Powerful Compatibility,Energy-saving technology,Environmental protection, no radiation,etc.) Specification 1.Headset charging port:magnetic contact charging. 2.Headset communication distance:5-10m. 3.Single ear talk time:2 hours. 4.Music playback time:3 hours. 5.Single ear standby time:12 hours. 6.Compatible with all kinds of mainstream bluetooth devices,such as smart phones,laptop,Smart TV Package Included 1 x Bluetooth headset 1 x USB Charging Cable 1 x Chinese/English User Manual