Brand Name: DearBeauty
Origin: Mainland China
Certification: CE
Standard Voltage: 220V
Application: BODY
Power supply: USB charging or dry batteries (not included in the package)
Material: ABS
Input voltage: 4.5V-5V
Output power: 4W
Output frequency: 1-330HZ
Charging time: 2 hours
Using time: 7 days
Type: ems massager
Type1: Tens Massager
Choice: yes