[Easy to install] Just plug the mini receiver into the socket and use the accessories provided to fix the transmitter on the wall; It will not interfere with other devices in your home or the devices in your neighbors, so that you will not miss visitors. This set of wireless doorbell is by far the most convenient choice for your family and business. [Waterproof and durable button] Classic fashion modern design, high-quality materials, prevent high temperature and interference. Waterproof and dust-proof, the remote transmitter button is IP44, weather proof. The operating temperature is between - 22 F and 158 F; It can withstand various severe weather conditions and is suitable for outdoor use. [Ultra long working range] The working range of the open area can reach 1000 feet/300 meters, ensuring that you can hear and answer the doorbell in time. Whether you are outside a few rooms, or on the other floor, in the garden or kitchen, when someone calls from outside, you can easily be notified and never worry about missing visitors. [Widely used&58 ringtone] The perfect wireless doorbell kit is suitable for families, apartments, schools, villas, offices, warehouses, hotels, factories, hospitals, etc. There are 58 different ringtones, and the volume can be adjusted from 25db to 85db. Stereo speakers provide rich and crisp sound, and you can easily select and set your favorite tone according to your needs; The flash indicator is easy to be noticed by people including those with hearing impairment. Product Perfect use case scenarios for these products: 1 button and 1 receiver This item is applicable to residence or villa. This project can be used in classrooms and offices. This item can also be used as a simple alarm device. Paging equipment for the elderly can send out nursing signals when they need them most. 1 button and 1 receiver Package includes: 1 button (transmitter) 1 plug-in buzzer (receiver)