Sports/running V4.1 Stereo Bluetooth Headphone/headset/earbuds with Super Long Battery Life Bluetooth 4.1 connection; 10 meters working range Super long battery life up to 8.5 hours music play time Designed for all users - Ideal wireless ear buds for the Gym, Hiking, Cycling, Jogging Comfortable wearing and will not fall off when exercising due to the ergonomic design Package content: 1*headphone, 1* user manuel, 1*charging cable