Bluetooth 4.1V Portable Wireless Stereo Headphones in-Ear Noise Cancelling Headphones Earbuds Headsets/Microphone Running,Sports & Exercise Earbuds for iPhone, Samsung,Bluetooth-Enabled Tablets CVC6.0 intelligent noise reduction It can connect 2 devices with bluetooth at the same time Sweatproof design, best choice when you do sports Sweat proof:Waterproof testing,Immersion in water beyond 1 meter,take out Immediately;water splashing from any direction--No Harmful effect.So go ahead,move,sweat and rock hard,Running In the Rain. With Microphone,hand-free calling.Portable and light weight fashion design,easy to to carry