1According to the ergonomic design, the tilt is 55, and the ear hanging type fits firmly, which is suitable for running. 2180 rotating earcap design, free adjustment of angle, left and right ears can be worn. 3Powerful composite dynamic diaphragm, start instantaneous sound waves like ocean waves response. 4The earhook is made of flexible and springback material, which will automatically snap back to the back of the ear when wearing, making it more comfortable and not easy to fall off. 5IP54 waterproof, can effectively prevent rain and sweat into the headset internal damage components, no fear of rain and sweat. Item Type: BluetoothEarphone Material: ABS Color: As Pictures ShownWeight: Approx. 127g/4.5oz Bluetooth version: 5.0 Pairing name: A10 Headphone battery: Lithium polymer battery 200mAh Charging box battery: polymer lithium battery 1500mAh Charging time: about 2 hours Charging voltage: DC5V Listening time: about 30 hours Talk time: about 48 hours Effective range: 10-15 meters/32.8-49.2ft Waterproof: IP54 1 x Charging Box 1 x Bluetooth Earphone 3 x Ear Cap 1 x Micro USB Charging Cable 1 x Manual