Specifications:
Headphone Battery: 230MAH
Listening to songs and talking: 15-20 hours
Charging time: about 1.5 hours
Bluetooth version: version 5.0
Frequency: 40Hz-20KHz
The impedance is: 32 ohms
Sensitivity: 85dB/mW
Product size: 5.5*2*1.5CM
Product color: BLUE,RED,WHITE,PINK

Package Included:
1*earphone
1*charging cable
1* manual
1*hook