It takes pulse magnetic field as physical principle; Sponge body bioelectricity periodic rule activity is a foundation; Muscle's pump theory mechanism for medicine basis; the electricity flows from one half to the other, it plays to the penis enlarge, last, avoid premature ejaculation, and have a very good improvement for men’s cock.
Function: Penis Extender
Power: 2*AAA Batteries
Color: As Show
Controller Size: 6**8*2CM
Ring Size: 4.5 And 3.5CM
Material: ABS and TPR
Further: Waterproof
Package: Color Box
Package Size:16.5*11*4.5CM
Voltage:DC 3V
Battery: AAA x 2 （1.5V）
Pulse Power:MAX 100V / 20mA
Pulse Frequency:2-100Hz
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