Wireless Bluetooth In-ear Headset Large Power Ultra-long Life Battery

Product information:
Color: black, white
Transmission range: 20 meters
Chip type: Jerry
Battery life: 4-8 hours
Bluetooth version: V5.1
Bluetooth protocol: A2DP,AVRCP,HFP
Effective distance: 10m
Frequency range: 20Hz-20KHz
Runing hour: 5H (earphone) 24h (charging case)
Input: DC 5v 200mA (headset)/DV 5V 1A (charging case)