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KERUI M518 self generation wireless home smart remote control battery-free doorbell

Brand Name: KERUI                        Model: KR-M518
Item Type: Wireless Doorbell         Power: Electric Supply
Feature 1: Wireless doorbell          Feature 2: Doorbell no need battery
(5000 available)
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  • Description
  • Reviews(326)


Self power generation wireless doorbell,integration with 52 songs, adopts advanced wireless transceiver technology and high-quality voice processing technology. Wireless doorbell can be applied to apartment, villa,shop, hotel,home, office building,meeting room ect .


  • 52 available tones
  • 5 adjustable volume levels (including mute)

  • Memory function (when the doorbell receiver power on, the tone stays the same with the one being set last time)

  • Dazzling and colorful indicator light

Self  power  generation

No need battery,  press button and Kinetic energy turn into electrical energy .

Ordinary doorbell was average changed a battery once a month , Every year need 12 batteries, one battery costs 1 dollar,
You can save lots of money and batteries every year.


Colorful light flashing with tones

Doorbell Receiver flashing along with playing tones, easy to remind people there is someone coming.

light is about 0.3W, only 1-3 kWh a year

wireless doorbell volume adjust

52 available tones

52 tones for your option,you can select regularly,and don't feel bored.Avoid the same ring with the neighbors.


5 adjustable volume level 

After a busy working day and want a relax sleeping time ,you can adjust it to mute.
​while the maximum volume can up to 100dB.

Long distance transmission

Long operating range can be up to 330ft(100m) in open space,

great for large house including villas, apartment, offices, shops, warehouses, etc. 


Easy installation

Just plug the receiver into power socket and attach the transmitter on door,

you don’t even necessarily have to make holes or damage anything.


Emergency call function

There are two methods to learn bell button, one for doorbell function,the other is for emergency call function.
you can selected a certain tone as emergency calling tone.It is very useful for old people and Pregnant women .


Multiple Choice




Power supply : AC 100~240V 50-60Hz

Standby currents: < 3mA (220V AC)

Working currents: <11mA (220V AC)

Frequency: 433MHz

​Receiving distance: 100m(open area)


Average rating: 5.0 based on 326 reviews
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