New Smart Adjustable Hand Wristband Massage Instrument

Product information:
Heating Method: electric heating
Applicable scenarios: Running
Color: Gray
Specification: English Neutral
Material: Yoga cloth, Lycra, conductive leather, ABS
Product Name: EMS electric massage wristband
Product Model: XY-02
Main material: Yoga cloth, Lycra, conductive leather, ABS
Charging parameters: 5V 1A
Rated Voltage: 3.7V
Rated Power: 3.2W
Battery Type: polymer lithium ion battery
Battery model: YN803040
Battery capacity: 800mAh
Timing: 20 minutes
Charging time: about 2 hours
Charging indicator light: the power indicator light flashes
Can it be used when charging: no