Specifications:
1.Bluetooth version：V5.0
2.Working Range：Around 10m (open space Max.20m)
3.Charging Voltage：5V 1A
4.Operating voltage：3.7V
5.Standby current：<0.02mA
6.Music time： ≥7H
7.Talk Time：≥7H
8.Standby Time：>148H
9.Charging time：<2.5H
10.Working Temperatuer：-10~+55℃
Bluetooth 5.0 chip
What is included：
Packing list: 1 x earphone 1 x Audio cable 1 x USB cable 1 x manual