Leten's latest masturbation device for men, the SM 320, is equipped with heating, thrusting, and moaning functions, all aimed at providing you with an intense orgasm! The SM 320 features a speed knob that increases the speed of the telescopic movement when turned clockwise. Turning it counterclockwise decreases the speed and eventually stops the telescopic movement. The heating button creates a warming effect, depending on the actual environment in which the masturbator is used. You will feel a noticeable warmth after 10 minutes. The moaning button enhances the experience while using the masturbator.