Model No.: KZ813
TWS Earbuds-Private Tooling
Bluetooth version: JL5.3
Material: Plastic with metallic finishing
Working distance:10M
Wireless frequency: 2.4 GHZ
Earbuds battery: 30 mAh
Charging dock : 250 mAh battery 
with protective board.
Playing time: About 5 hours
TYPE-C connector
Product weight: 45.8g
Product size: 23.74*51.02*53.84mm