DACOM G10 Wireless Bluetooth Sport Earphones Deep Bass Earbuds Headphons with Build-in Mic [Bluetooth 4.1, Surround Sound, 10 Hours Playtime] New technology of Bluetooth 4.1 - Make your earphone more stable with the connecting device. Long lasting 10 hours li-ion battery, satisty your spare time. 2 hours charging time with USB port. Ergonomic designd - Comfortable and lightweight wireless earphones with ear tip, very secure under state of motion Build-in microphone and hands-free, sweat- and water-resistant design for increased durability Elegantly designed - All of the buttons are together on the cable, fashion and practical, suit for Cycling, Hiking, Yoga, Gym, Jogging and so one.