1.Rechargeable Lithuim battery 602535/400mAH;
2.Input Voltage:DC 5V, 5W
3.1xUSB rechargeable cable with Type-C
4.Charge 1.5h can use 1.5h-2.0h.
5.Pendant Design Advantages: compact, and comfortable to massage.
6.Voice version easy to know you are in which models.
7.EMS Stimulation to contract your muscle firmly and effectively.
8.Time Default:Auto power off after 15 mins
9.15 EMS massage leaves, 4 massage modes
10.With 3 levels heat function
11.Pendant design good to hang into neck.