Meke NB3 Neckband Headset with Magnetic Attraction

Specifications:
Product Name: Wireless Neckband
Charging Compartment Battery: 210mAh
Cell Voltage: 3.7V
Call Time: 25H
Music Play Time: 20H/50%vol
Standby Time: 30 days
Impedance: 32Ω
Sensitivity: 101±3dB