🔔HIGH PERFORMANCE TRANSMITTER - Wireless doorbell is made of ABS material, which is non-toxic, harmless and recyclable, the material can keep itself against from dust, rain and high temperature 🔔CONTROL WITHIN 1000 FEET - Included 2 Receiver&1 Push Button. It not interfere other equipment at user’s house or neighbor’s house. Ensures user never miss visitor, even in a large size house 🔔36 MELODIES FOR CHOOSE - Wireless doorbell is designed 36 melodies and 4 volumes for choose. And it has special function that is design new melody by user. The wireless doorbell can remember the melody after power cut 🔔ENERGY SAVING & LONG LIFE - 0.3W ultra-low power consumption design. It have IP44 waterproof function, it not only can work in rain, but also can work in -22 °F-158 °F. Withstands various harsh weather conditions 🔔SIMPLE SET UP - Just plug the mini size doorbell into a socket and fix the remote on wall with these accessories that provided, including a screwdriver, and Double-sided tape