【38 Beautiful Chimes & 5 Volume Levels】 Wired door alert bells with stereo speaker delivers rich and crisp sound; press the next or previous button to easily choose from 38 melodies; wired door ring bell with 5 adjustable volume levels, and home door bell kit with a maximum volume of 110 db; The silent mode with just led flash is available when you don't want to be disturbed. 【Ultra Long Wireless Range】 Wireless doorbell chime kit operate range of up to 1,000ft / 300m in an open area when there are no obstructions, wireless doorbells With 1 Remote Transmitter 2 Plug-In Receivers ensure that you hear the bell and respond to the door on time, door bell ringer ensure that you never miss any important guests or urgent deliveries even if you are several rooms away. 【Waterproof & Dustproof】 Waterproof villa doorbell Kit ensures the rain day usage perfectly. Sleek flat panel makes cleaning dust a piece of cake. Ultra-low powerconsumption. Doorbell adjustable volume with ip55 dust-proof and waterproof; cordless door bell kits with sound works temperature ranges from -30 °C to 70 °C; With stands various harsh weather conditions. Just rest assured to put the black doorbell kit outside for convenience. 【Simple Set UP】You Just plug the door bells wired for home receiver into a socket and fix the transmitter on a wall with the accessories provided; doorbell chime ring with LED Flash Sound includes 1 transmitter (battery not included), 2 plug-in receivers, 1 piece of double-sided bonding tape, 1 small screwdriver, 1 user manual. 【Work Great For Any Occasion】 The door bell set of 2 is suitable for any home, townhouse, apartment, office, school, hospital, hotel, or other application. Whether you're using 300m range door bell outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for home door bell set.