Waist Support Massage Belt Lumbar Vertebra Soothing Instrument Vibration Cold Compress

Product information:
Power type: Rechargeable
Gear: 4th gear
Specification: 3000mah pneumatic vibration hot compress, 3000mah vibration hot compress
Battery capacity: 3000 mA
Charging duration: about 2.5 hours use duration: about 70 minutes
Voltage: 3.7V
Charging Method: TYPE-C
Usage time: 15 minutes/cycle