Long Range The wireless doorbell transmitter and receiver can be freely paired, easy to use and easy to operate. This wireless doorbell is suitable for your home, apartments, office and garages with a range of up to 1000 feet outdoors.4 Adjustable Volumes and 55 Different RingtonesYou can set different ringtones for different doors. The doorbell button has 55 bells and 4 adjustable levels (25dB to 85dB) to meet your needs.Light Indicator In addition to the bell, there are visual signals. It can give you a visual form of notification when the wireless doorbell is in use, a great feature for the hearing impaired.IP55 Waterproof and Dustproof The doorbell is waterproof, so you don't have to worry about it on rainy days. IP55 waterproof and dustproof, can withstand bad weather and works between -22F and 158F. This doorbell is suitable for any family, apartment, villa, office, hospital, school, hotel, etc.Easy to install and use The doorbell is wireless, without annoying cables. Just stick the transmitter on the wall or wherever you want.