Pretty Love Bert 30 Functions of Vibration 100% Silicone has an advanced design which is 100% silicone. It features 30 functions of vibration in smart one-button operation. It is waterproof and requires 2 AAA batteries (not included). | Uses: It is primarily used to enhance pleasure in bed. | Product Specifications and Features: Has an advanced design Made of 100% silicone Features 30 functions of vibration Has a smart one-button operation It is waterproof | Directions For Use: Use as directed. | Safety Information: Read the label carefully before use Store in a cool and dry place away from direct sunlight Keep out of reach of the children