HC-643A Smart App Control Heated Insoles

Material: EVA bottom foam cotton
Heating temperature:50-60℃
Battery voltage: 3.7v
Battery capacity: 1900mAh
Charging voltage: 4.2V
Discharge voltage: 3V
Charging method: Micro charging port
Cc/cv: Input: AC100-240V 40-60HZ
Certificate: CE, RoHS, FCC
Features: Safe heating, with remote control, power display function