Sureflap Microchip Cat Flap CONNECT HUB iDSCFWTB1 in white with compatible tunnel extensions for a wall depth up to 370mm, with FREE UK Mainland delivery on all orders. Suitable for solid and cavity wall constructions. Key Features Microchip-Activated: Works with your cat’s existing microchip, no need to wear a collar! Selective Entry Exit: Keeps unwanted animals out and offers greater control over which cats can leave! Smart Phone App Controlled: Remote locking/unlocking, notifications, timed curfew modes and more in app features! Battery-Powered: No wiring required, with up to 6 months of battery life. Versatile Installation: Fits doors, windows, and walls. Multi-Pet Friendly: Stores up to 32 pet identities. Flap Size 142mm x 120mm Frame Size 210mm x 210mm Please note the Hub included with with product requires a wired ethernet connection and power source, and to be place within 10m of the cat flap installation location. The app functionality requires a compatible smart phone capable of running the required SurePetCare App.