Your guests will definitely not be left at the door! The SECRUI Wireless Doorbell rings at 1000 feet, so even your neighbors won't be able to “steal” your call. It's easy to install: plug it in and you're all set. 58 melodies to choose from and even Christmas tunes. 5 volume levels to set the right mood. IP55 protection will withstand rain, snow and heat from -4°F to 140°F. This bell doesn't fear the weather or time - and you'll know about every guest before they even touch the door.