Support mobile phone, notebook with blutooth devices
Bluetooth version: 5.0
Transit power: Class2
Protocol: HFPV1.5 and HSPV1.1
Transmit range:10 meters
Frequency range：2404-2479MHZ
Charging adaptor: DC 5V,300mA
Working temperature: -20－ 60 ℃
Working voltage：DC 4V
Power specification：
Lithium battery: 3.7V，200mAh
Charging spec: 5.0-5.3v / 100-450mA
Standby time： 36 hours
Talking time： 24hours
Charging time： 4hours

6 colors available:
Black/white/blue/red/yellow/pink