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 collocation:
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.
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 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 collocation
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
