Headset Bluetooth Ear Covering Subwoofer Wireless Headset

Product information:
Color: dark black, silent blue, nobility pink, technology Gray
Transmission range: 10 meters
Chip type: Zhongke Lanxun
Battery life: 4-8 hours
Material: PC ABS
Purpose: Head-mounted
Style: simple style
Frequency response: 20~20kHz
Maximum output power: 20MW
Working range: 8~10m
Battery Voltage: 3.7V
Battery capacity: 200mAh
Battery charging voltage: DC4.2-5.5V
Charging time: 2H
Working hours: 6h
Speaker diameter: 40mm
Interface: Type-c