Model No.: KZT50
TWS Earbuds-Private Tooling
Bluetooth version: V5.0
Chipset: JL6983
Working distance:10M
Wireless frequency: 2.4 GHZ
Earbuds battery: 25 mAh
Charging dock : 200 mAh battery 
with protective board.
Playing time: About 4 hours
TYPE-C connector
Color: Black, White, Khaki