【Easy to Install】Just plug the mini receiver into a socket and fix the transmitter on a wall with the accessories provided; Includes 2 screws, 2 anchors, a battery, a double-sided tape, and even a screwdriver. Will not interfere with other equipment in your home or those of your neighbors, ensures you will never miss a visitor. This wireless doorbell set is by far the most convenient choice for your home and business. 【Waterproof & Robust Push Button】A stylish modern design in classic white, excellent materials keeps itself from getting higher temperature & interference. Waterproof & Dustproof, remote transmitter button is rated IP44 weatherproof. Works between -22 °F to 158 °F; withstand various harsh weather conditions, acceptable for outdoor use. Our door bells are certified with CE, RoHS, FCC. 【Ultra Long Operating Range】Operating range up to 1000ft / 300m in the open area, ensures you to hear and answer the doorbell in time. Either you are occupied a few rooms away or on another floor, in the garden or kitchen, you will always be easily informed when someone is calling from outside, never worry about missing visitors. 【Widely Applied & 38 Ringtones】A perfect wireless doorbell kit for home, apartment, school, villas, office, warehouses, hotel, factory, hospital and more. There are 38 different ring tones with 4 levels of adjustable volume from 25db to 85db. The stereo speaker delivers rich and crisp sound, easily choose and set your favorite tones as you wish; Flashing light indicators which are easy for people including the hearing impaired to notice. 【Warranty】Our BO YING wireless doorbell enjoys the 5-year warranty and friendly customer service. We stand behind all of our high quality products and each is backed by the strongest Manufacturer Support. If you have any issues with our Wireless Doorbell, we're here to make things right.