Celebrat Wireless/Wired Headphone.

Excellent sound quality great bass this model adjusts to your anatomical parameters the case is made of strong and reliable materials, practical at daily operation tf card support (maximum 32g) bluetooth chip: jl6925f bluetooth version: v5.0 transmission distance: 10 m waiting time: about 80 hours battery capacity: 200 mah charging time: about 2.5 hours music time: about 5 hours call time: about 4.5 hours.