No Battery Required: Our wireless doorbell transmitter uses unique PUSH-RF technology. When you press the button, the kinetic energy is converted into an electrical signal that rings your doorbell wirelessly. You no longer have to worry about batteries. More convenient,
energy-saving and more practical than the old one.

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

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

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

Memory Function: Preserves your last melody and volume level after a power outage; you don't need to reset your previous settings; practical and easy-to-use design for a better user experience. Easy to use, simply attach the doorbell next to your door using the
included double-sided tape or use the screw to mount the cover on the wall. Then plug the receiver into an electrical outlet.