Airplane Bottle Men's Sucking Vibration

Product information:
Color: Black
Functions: sucking, sounding, vibrating
Material Type: silicone ABS
Product Size: 76(D)X211(H)mm
Noise index: less than 65 dB
Vibration mode: 8-frequency sucking vibration/Interactive Voice Response
Waterproof: the electric part is not waterproof, and the soft glue can be washed with water