The 電動飛機杯 is an innovative device that integrates mechanical engineering with soft-material design. Its primary function is to create automated internal stimulation through motor-driven movement. Inside the 電動飛機杯, a small electric motor drives a mechanism that produces suction or pulsation effects. These effects are transmitted through a replaceable inner sleeve, which is... https://www.toysduck.com.hk/飛機杯/