F1S Prototype Smart Performance Console from Lelo. Shorten the distances between science and nature with F1S, the new generation of pleasure products for man that makes him the master of his destiny. And with a covered window, you can add a unique visual visual and see your pleasure in action. Using powerful Cruise Control dual motors and Lelo's revolutionary SenSonic technology, F1S massage you with deeply satisfying sonic waves for a completely new and extraordinary sexual experience. Omejor still uses the free Software Developer Kit to create their own sensations and track their progress and dexterity through customization internal sensors. Simple intensity controls for one handed use.Textured aluminum body. Internal grooves grooved to increase sensations. Ergonomic and safe body internal silicone channel. Window panel for a new visual dimension 10 state of the art performance sensors. The SDK app is compatible with IOS and Andorid. Connected by Bluetooth the app allows you more and more detailed control over your personal pleasure. Fully rechargeable and waterproof. Simple intensity controls for one hand use. Materials Silicone canal, Aluminum case. Masturbator has a window panel for visual stimulation. 10 cutting edge performance sensors. 2 hours of use in one charge.