Open-Ear Running Bone Conduction Wireless Headphones Bluetooth 5.0 Earphones Features: Open wireless headphones surround the directional sound field, open design, only 18g, sweatproof and waterproof, small body life. Wear comfortably without ear clips, protect ears from damage. Surrounding directional sound field The speaker adopts physical.ecological diaphragm technology. The headset is only 18g, light and wearable. 120mah battery life, Bluetooth 5.0 chip, lower power consumption, stronger battery life, IPX5 life waterproof. Specifications: Battery capacity: 120mah Bluetooth version: 5.0 Bluetooth distance: 10M Standby time: 120H Product color: black, red, gray Frequency response range: 20HZ-20KHZ Play time: 5H Maximum charging voltage: 5V Charging time: 1.5H Function: call function / support music Package Included: 1*Earphone 1* Charging cable 1*Manual