Color: Black-A, Features: True Wireless Hi-Fi stereo: The wireless headset has high-quality speakers with customized high-fidelity audio units, which makes the bass heavy, the treble is clear and clear, and the stereo and mono effects of the Bluetooth headset are excellent. You can use only one or use them together to enjoy stereo sound. High-quality speakers with customized high-fidelity sound units will bring you a feast of hearing. Specifications: Name: TWS Wireless Earbuds, Model: M10, Bluetooth version: V5.1, Transmission distance: within 10 meters, Headphone capacity: 50mAh, Charging capacity of charging bay: 2000mAh, Charging time: 60 minutes, Standby time: 120 hours, Music time: 2-3 hours, Talk time: 2-3 hours, Input power: 5V/1A, Waterproof rating: IPX7 equipment, Headphone charging: about 40 times, Lifetime: about 220 hours (need to be used with charging case. ), Talk time: about 180 hours (need to be used with charging case. ), Control method: touch operation, Compatibility: 99% of Bluetooth mobile/computer devices on the market. Package included: 2* TWS Bluetooth Earbuds,1*Charging Compartment,1*Charging Cable,4*Earmuffs,1*User manual.