Transmission range: Name: XG-12 Bluetooth TWS Dual Headset

Color: black, white

Speaker specifications: 8 miles of true copper ring rubber
Speaker impedance: 16 ohms

Speaker frequency response: 20Hz ~ 20KHz
Speaker rated power: 3MW

Speaker 1k sensitivity: 98db
Talk time (medium volume): 3.5h

Music time (medium volume): 4h
Standby time: 120h

Bluetooth chip: (Zhongke Lanxun solution)
 Bluetooth version: 5.0+edr

Transmission distance (m): 7-10 meters
 Power consumption: 18-22 mAh

Input power: 93mW
Headphone charging time: 1H

Headphone battery capacity: 55 mAh
Charging battery capacity: 350 mAh

Cycle chargeable times: 3 times
 Charging time outside the charging compartment: 1.2H

Battery voltage: 3.2-4.2v
  Accessories: manual + data cable + ear cap

Double eared bin packaging specification: 105*85*35mm

Single ear belt storage package specification: 105*85*35mm

Single ear USB package specification: 123*92*26mm