Alisable High Performance Slashproof/Sweatproof Jogger, Running,Sport Wireless Bluetooth 4.0 In-ear Stereo Headphones/Headset/Earbuds/Earphone With NFC,High Sensitivity MIC,hands-free calling,Clear Sound, Noise Cancellation,Perfect for Smartphones. (SH03D white) Talk time and standby time:Built in 120mAh Rechargeable lithium polymer battery ,The Alisable SH03D provides up to 6 hours of music playback time (8 hours of talk time), and 200hours of standby time Made for workout:Super lightweight(17.2g) and portable ,Ergonomically and Behind-the- head designed design fits comfortably and long time stays stably put for all levels of exercise .With different size earbud,you can find the best for you. Splash-proof,sweat-proof, durable desing:Alisable SH03D works through rain, sweat, and even the splash of a sports drink They are protected against sweat and moisture, High Quality material and processing make the headphones more reliable. All-in-one: Compatible with Bluetooth-enabled smartphones(e.g. iPhone 6, iPhone 6 plus), tablets, PCs and MP3 players for music, movies, and calls, Check your headset's battery level from your iPhone.Bluetooth headset designed for sports is an all-in-one gadget for your audio needs. High performance:Easily connect this NFC-enabled Bluetooth headphone with built-in microphone to 2 devices and listen to HiFi stereo sound and crystal-clear phone calls simultaneously.