Sleep aid insomnia black pink white gold smart electrotherapy Ems sleep aid device portable massager

Charging input voltage and current: 50±02V180mA±30mA

Device size: 145*50*38mm

Device net weight: 52g

Charging time: 1-2 hours

Built-in battery specification: 200mAh/3.7V

Usage time: about 20 times 15 minutes/time

Charging output interface: standard V8 interface