No Battery Required: Our doorbell transmitter uses PUSH-RF technology.
When you press the button, energy is converted into an electrical signal that rings at your door.
No more worrying piles. More practical, more energy efficient and more practical than the old .
45 Beautiful Chimes & Melodies: Offers 45 classic melodic chimes with adjustable volume control and diverse 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).
Waterproof IP44: Rating IP44 Waterproof transmitter design, made of ABS, , safe and recyclable, can work in temperatures from -20 ℃ to 65, and withstand various harsh weather conditions, sunshine, rain , snow, frost etc.
Widely used for home, office, hotel, villa, hospital, office, apartment, school and other suitable fields.
the receiver into the socket ， Press the button on the exterior wall to remind.