Battery-free wireless outdoor doorbell, waterproof, IP65, withstands snow, rain, and moisture. [BATTERY-FREE = PEACE OF MIND]: Why choose a battery-free system? It is well known that batteries cannot withstand moisture, sub-zero temperatures, or intense heat. Rest assured, perfectly adapted for outdoor use, this battery-free wireless doorbell withstands extreme weather conditions. [NEVER LOSE YOUR PACKAGES]: Another delivery notification in the mailbox? Or an impatient customer because you are in the storage room? Yes… what bad luck! Your wireless doorbell batteries are always dead, and of course, it always happens at the worst possible time! [EXCEPTIONAL TECHNOLOGY]: Guaranteed to work every time! We use a state-of-the-art, reliable, robust, and efficient self-sufficient mechanism. In addition, the extended antenna ensures excellent range that penetrates walls and cobblestones without problems. [ECONOMIC AND]: Forget batteries at home; Save money with your battery-free doorbell kit. Furthermore, by avoiding battery changes, you avoid the long and complicated recycling process. [QUICK AND EASY INSTALLATION]: No complicated programming or dangerous handling. Choose the location for your doorbell, plug it into an electrical outlet, and you are ready. Then you can choose the volume and melody that suits you best.