Letsip® V4 as S4 with vibration where the strong sonic vibration goes deep into the muscles and gives increased activity if there are rapid changes in the sonic impulses (width 55 mm). With long-term stimulation of the same muscle, a reduction in elasticity and tone can be achieved.
Letsip® V4 has five different levels: Strong, Medium, Sensitive, Pulse1 and Pulse 2.
Sonic pulse technique; up to 48,000 sonic pulses per minute.
