Kerui M518 Wireless Doorbell is a self-power generation doorbell. You do not need to buy a battery for it, it can generate power by itself, and that’s why we called it “Self Power Generation”. Even if there is no electricity in the whole world, you still can hear the bell ringing clearly because it will keep ringing for you… Most of our customers are very happy with this product. They feel that the “Self Power Generation” function is really something different compared with other similar products on the market.
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KERUI M518 self-generation wireless doorbell – No Battery Required
1. 52 available tones
2. 5 adjustable volume levels (including mute)
3. Memory function (when the doorbell receiver power on, the tone stays the same as the one being set last time)
4. Dazzling and colorful indicator light
No Battery Required
No Battery Required for Push Button and Receiver: When the button is pressed, it converts kinetic energy into an electrical signal to ring your wireless doorbells. So no more worrying your push button runs out of batteries and no more hassle in buying awkward weird batteries to run your push button
The 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.
Colourful 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
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 relaxed sleeping time, you can adjust it to mute.while the maximum volume can up to 100dB.
The mute setting can avoid disturbing the baby’s sleep.
There is a LED flashing light reminder when guests ring the doorbell
The long operating range can be up to 330ft(150m) in open space, great for the large houses including villas, apartments, offices, shops, warehouses, etc.
Just plug the receiver into a power socket and attach the transmitter to the door, you don’t even necessarily have to make holes or damage anything.
Emergency call function
Elderly care / patient care / emergency call for help
Home care wireless pager, 24-hour care
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- 100% Satisfaction Guarantee: All our products are backed with 60-day money back guarantee. If for any reason you’re not completely satisfied with your purchase, contact us for a product refund. We’ll be more than happy to assist you.