KERUI M521 Smart Doorbell Home Security Welcome Wireless Doorbell 57 Chime 100m Remote Control With Battery Powerd Door Button
1.Strongly recommended：
This doorbell has a novel design, ringing bell, up to 57 music tracks to choose from, adjustable volume level 4, the host has memory function, each time the doorbell prompt tone is set for the last shutdown, the host can set the doorbell button to play the fixed door ring tone.
The doorbell host and the doorbell button can be coded wirelessly. Suitable for villas, clubs, leisure centers, hotels, guesthouses, families, office buildings, conference rooms and other occasions.
2.Multiple collocations:
The distance of 100 meters is enough to cover all the doors and windows of your house. Each wireless doorbell receiver can be paired with up to 20 magnetic door alarm sensors, and each sensor can add an unlimited number of receivers. Not only the doorbell but also can be used as a greeter alarm.
Tags: wireless doorbell | best wireless doorbell
3.Wide Range and Long Distance
1.Stable quality is ideal for villas, hotels, schools, and other areas.
2.The wireless signal will be affected by obstacles. The more obstacles, the more serious the signal loss.
3. Warm tip: The button cannot be placed on an iron door because it will interfere with the signal.
4.Strong penetrating power
High-frequency transmission technology, partition wall can also transmit signals to meet household needs without worrying about not ringing the doorbell. up to 100m distance transmission, No longer afraid of not hearing the doorbell.
5.57 Ringtones Available:
Different places use different ringtones, or different times use different ringtones and have a good mood every day.
6.Different Song Use for Different Mode
You can set different music for different environments at the same time.
57 Music Songs optional.a variety of combinations each button can set different ringtones
7.Multiple collocations
You can choose different packages according to your family type.
8.Two-step installation
Step 1: Remove the double-sided adhesive tape and stick it on the back of the button, then stick the button on the wall.
Step 2: Plug the doorbell host into the socket
Product Detail
Operating voltage: 100 ~ 240 V, 50 ~ 60 Hz AC
Operating power: 0.5W
Receiving frequency: 433MHz
AllOK
Great call
All OK. Makes it well to the balcony, while the volume is excellent for the maximum is not necessary to put and the main battery is included
I use it myself, now I bought it for my parents. Worthy goods of good quality. Recommend
The call is cool, very loud. Looking quality! Delivery in Kharkov is less than a month.
11 days to St. Petersburg. Works OK. The battery is included. Pulled out a safety cardboard strip from the button and everything worked.
Very well. Music plays, the bulb glows, everything is fine)
Perfect! White, small, 57 melodies, I'm delighted!!! Recommend
Delivery in postomat 3 days. Quality. 50 meters from the house to the fence takes on Hurray. Aesthetic. the choice of melodies is huge and good. Volume adjustment. Satisfied with the purchase. Thank you.
The button is hanging on the iron gate, through the wall with the window, works, the volume is sufficient, like
bueno
Все четко
Great call! Got there quickly, tracked! I recommend to everyone and the goods, and the store!
Not very loud, if you put in the closet you can not hear
Excellent call, loud truth, on the minimalka, even loud, if you consider that small children sleep in the house. Came quickly to Ufa, the courier delivered. In the button there is a battery (tablet). Through the metal door takes excellent. I recommend the goods and the store)
He arrived soon and works very well.
The parcel arrived quickly enough, packed perfectly. I tried, everything works. For some reason, the instruction is not attached. Well, I recommend the store.
Envío muy rápido. Funciona muy bien. Tiene un volumen lo suficientemente alto como para escucharlo bien. Tiene bastante alcance, yo lo tengo el pulsador a unos 50 metros del timbre y funciona perfectamente.
Excelente, lo probé y que producto tan excelente, y lo más bueno fue que llegó muy rápido, recomiendo al 100% este vendedor
Посылка дошла до Канска красноярский край за 8 дней, доставил курьер до двери, трек отслеживался, мелодий около 30 шт, полифония средняя.
Great, with the alarm running, punching through two concrete walls.
It works very well.☺️
Quality call! I have 20 meters quietly gets, a large selection of melodies, batteries in the kit and it is better immediately on the site to order plastic protection from rainfall for the button
всё супер всё работает батарейка в комплекте
В Краснодар прибыл за 10 дней. Хорошо упакован, соответствует описанию. Звонок ну очень хорош, мелодий на любой вкус, нет необходимости в батарейках, питание через электрическую сеть. Спасибо продавцу, и конечно же рекомендую!