1、LONG WORK DISTANCE: Our home wireless doorbell extends over 400 meters in open space, featuring powerful anti interference capabilities and one on one signal pairing. 2、BRIGHTNESS ADJUSTABLE: This wireless doorbell has added a new adjustable night light function (7 brightness options) suitable for night use. 3、PRIVATE DOORBELL: Install two paired emission buttons that can be set as private doorbell (with unique animal doorbell). The paired private doorbell button will play private music on the receiving host, allowing you to know your family is back in the first place. 4、MULTIFUNCTIONAL: Doorbell has 45 optional ringtones and a 5 level volume, which can be adjusted between 85 dB and 97 dB. Bright LED light is suitable for the elderly and those with hearing impairment. The doorbell has a memory function that does not need to be reset. You can select another melody after you close it, saving you time selecting another melody. 5、IP66 WATERPROOF AND DUSTPROOF: Wireless doorbell kit adopts a white fashionable modern design, with excellent materials that can prevent itself from being exposed to high temperatures, low temperatures, and interference, and can withstand various harsh weather conditions! 6、EASY TO INSTALL: Install and pair according to manual, no tools required! All you need to do is insert the adapter into the socket and attach the transmitter to the wall using double sided tape or screw in.