Letsip´s fitness tools get stimulus to the muscles,
Letsip® fitness products:
Letsip® S5
Letsip® S2
Letsip® V0 mouthpiece (width 20mm/.78").
Letsip® V1 mouthpiece (width 20mm/.78")
Letsip® V-series pulsing handle.
USB charger cable is included, along with one V-Series handle