xt11 magnetic wireless headphones built-in magnets ergonomic 0 wireless 4.2 technology in-ear headphones design

features: 1.built-in magnets let you attach the two headphones together when not using, and wear like a necklace around your neck, a convenient way to carry around when you don't need them. 2.ergonomic in-ear headphones design to specifically fit the contours of your ears, and a 10-meter working distance, our sport headphones will let you enjoy music when running, gym, sports exercise and other activities. 3.bluetooth 4.2 technology, easy and fast pairing with smartphones, tablets and oth...