No Battery Required: Our wireless doorbell transmitter adopts unique PUSH RF technology. When you press the button, it converts kinetic energy into an electrical signal to wirelessly ring your doorbell. You no longer need to worry about batteries. More convenient, energy saving and more practical than the old one.

45 Beautiful Chimes & Melodies: Offers 45 classic melody chimes with adjustable volume control and a varied selection to meet your needs. 4 adjustable volume levels from 0dB to 90dB, which is loud enough for the elderly to hear; enjoy pleasant melodies every time someone rings your doorbell. The LED indicator gives you a visual form of notification (a great feature for the hearing impaired).

IP44 Waterproof: IP44 rated waterproof transmitter design, made of ABS material, non-toxic, safe and recyclable, can work in temperatures between -20 ℃ and 65 ℃ and can withstand various harsh weather conditions, sun, rain, snow, frost, etc. Widely used for home, office, hotel, villa, hospital, study room, apartment, school and other suitable areas.

Long Wireless Range: With 150M/500FT wireless range, 2 plug-in receivers included, it will not interfere with other equipment in your home or those of your neighbors; ensures you will never miss a visitor, even if you are a few rooms away or on another floor. Ideal for large houses, warehouses, offices, etc.

Easy to Use: Convenient and easy-to-use design for a better user experience. Simply attach the doorbell next to your door with the included double-sided tape or use the screw to mount the cover to the wall. Then plug the receiver into a power outlet.