Although WMDoll dolls already include advanced Robotic features like Electric Waist & Hips, there was still a demand for a vibration mode that delivers strong sensations without large movements. The “Jitter Chest & Butt” feature directly addresses this need, offering a unique vibration experience.

The “Jitter Chest & Butt” function has 5 adjustable vibration modes, providing different levels of intensity to suit individual preferences. It also comes with an integrated Loudspeaker, offering moaning sounds in both English and Japanese, further enhancing the sensory experience.