Headworn Bluetooth Earphones, Wireless Stereo Foldable Card, Plug- Cable, Radio, Mobile Phone, Computer, Universal Features: Easy operation: Comfortable of buttons, easy to operate and enjoy convenience whether listening to or making calls. Adjustable metal head beam: Metal drawing, using steel bars to penetrate the entire head beam, which can be adjusted multiple stages according to the head shape, with natural expansion and contraction. Enjoy listening wirelessly: The connection distance can 10-20 meters using Bluetooth 5.0 chip, and the is faster, the power consumption is lower, and the connection is more stable. Excellent audio quality for ear listening: 40mm unit with strong power, such as clear and realistic sound The game has no delay, stable links, and continuous lines: the game, listen to sound and position recognition, and synchronize high-definition videos with-low delay sound and picture. Foldable allows for easy storage and easy portability: The lightweight and compact body features foldable that makes it easy to fold when you're not paying, making it easy to carry. Product Description: Bluetooth version: Jerry 5.0V distance: 10 meters Usage time: 5-10 hours Standby time: 5-8 minutes Automatic shutdown Battery capacity: 200mAh rechargeable lithium battery Charging interface: Android port Charging time: hours Functions: adjust audio stars, songs, incoming calls, reject incoming calls, hang up calls, Bluetooth playback, phone replay, Bluetooth callback, voice prompt, battery display, EQ, English broadcast Package: 1 × Bluetooth earphones, 1 × Data cable, 1 × instructions