Butterfly Massager $3.35+freeshipping
Has 10 intensity options and 6working mode options.
Four LED display
Will close automatically after 12 minutes normal staring.
It will return to "open" status without touching the skin during 3 seconds of normal starting; also it will close automatically during 20 seconds of "open" status without pressing any button.
Generates electronic impulses when the muscle exercise unit is working.
Press the ON/INC button again when power is on, the muscle training units start working, the intensity is level one, the mode is mode A.
It powered by 2pcs Li-ion button batteries, which can last for a long time.