Wireless and battery-free outdoor doorbell, IP65 waterproof, protected against snow, rain and moisture [NO BATTERIES = PEACE OF MIND]: Why choose a battery-free system? It is well known that batteries do not like moisture, sub-zero temperatures and intense heat. Rest assured, the battery-free wireless doorbell is perfectly adapted for outdoor use and is not affected at all by extreme weather conditions. [NEVER MISS YOUR PACKAGES]: Another notification in the mailbox? Or a customer getting impatient because you have goods in the store? Yes… bad luck, your wireless doorbell batteries are always dead, and it always happens at the worst possible time, of course! [RELIABLE PRODUCTION FROM TECH INC]: Guaranteed to work every time! We use a state-of-the-art, reliable, robust and efficient self-sufficient mechanism. In addition, the extended antenna provides excellent range, penetrating walls and cobblestones without problems. [ECONOMIC AND ECOLOGICAL]: You don't need to have batteries or spare parts at home; save money with your battery-free doorbell kit. In addition, by avoiding battery changes, you make an environmentally friendly choice by avoiding the long and complicated recycling process. [QUICK AND EASY INSTALLATION]: No complicated programming or dangerous handling. Simply choose the location for your doorbell, plug it into an electrical outlet, and you're ready. You can then choose the ring volume and melody that best suits your needs.