a. Fully automatic flat-laying play with anal insertive stimulation
b. Combination of penis + perineum + anus + prostate pleasures for intensified orgasm
c. Dedicated insertive prostate massage head and adapter
d. Sliding and swinging stimulation for the penis
e. Multiple non-insertive anal massage heads and perineum expansion heads
f. With modular design, freely combine pleasures
g. Multiple customizable adjustments for optimal performance
h. Infinitely variable speed, powerful，low noise