ALLIMITY Wireless Headphones Bluetooth Stereo Headset Noise Cancellation Sweatproof Sports Wireless Earphones with Mic for Gym, Hiking, Running, Jogging, Cycling, Biking, Exercising, Workout (Black) This wireless bluetooth earpieces can pair with 2 smart phones simultaneously; you can pair your own phone with your wife, your girlfriend or friends. Sharing things will be easier and relation will be more closer. Based on high-end CSR chip Bluetooth V4.1 technology, this wireless earbuds can fast and easily connect with iphone, ipad, ipod, samsung, sony, HTC, blackberry, most android cell phone and window phones. Adopting CVC 6.0 and noise cancelling tech and support A2DP technology, this Bluetooth headphone can intelligently filter ambient noise and reduce background noise, idea use as gym headphones, hiking headphones, jogging headphones, running headphones, exercising headphones, workout headphone etc. Light weight, comes with 60 degree rotatable ergonomic earhooks and soft rubber-made ear plugs to fit different ears shape and stay in place, comfortable to wear. Built-in Rechargeable and reliable Li-ion Battery, talking time can be up to 6.5 hours, play time can be up to 6 hours, and standby time can be up to 240 hours with every 2 hours full charging; Much more than the other sports headphones.