Safe and liquid food grade silicone materials.Handheld mini size, easy to grasp and carry. USB pinhole charging, energy saving and environmental protection. About 1.5-2h full charged. Multiple app exercise modes, Classical mode,Music mode,Shake mode,Interactive mode. Highly waterproof grade Can be used for 90-120 minutes at a depth of 1 meter. Scan and download APP connection, simple and convenient, no wifi required,controlled within 10 meters. Features: Mobile Phone with APP Remote Control Highly Waterproof Design Liquid Food Grade Silicone Safety Material Mini Size, Easy to Carry and Grasp USB Rechargeable Gift of Love When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!