Ecandy Sports Sweatproof Wireless Earbuds Wireless Bluetooth Headphones- Advanced Bluetooth 4.1 technology, giving these wireless earphones unparalleled stereo sound quality. With Ergonomic in- ear design perfectly fit your ear, built-in silicone ear hooks help keep earphones inside your ears/prevent falling out when exercising using these. and come with extra earbuds in different sizes so that a kid can use them comfortably as well an adult Built-in microphone Allows clear Phone communication; Easy to set up and sync with iPhone 6/6s/6s plus,Samsung Galaxy S6 S5,easy to operating on /off button on top and the volume and other controls on the side. Long playing time with rechargeable Bluetooth headset, running & workouts can go for longer to the beat!Talking/playing time up to 5-7 hours and 180 hours stand-by time .Operating distance reach to 10 meter(open space). soft,lightweight and sweet proof noise cancelling bluetooth headphone,Perfect for running,walking,jogging,exercising. Compatible with iPhone 6/6s/6s plus,Samsung Galaxy S6 S5,iPad mini iPad Air/iPad pro and almost smart phone,Xiaomi and almost smart phone.