KERUI 433MHz Colorful Light Doorbell Welcome Chime Doorbell 52 Songs Optional Customized Melody Night Light Wireless Motion Detection Alarm System with 1pcs Doorbell Button

KERUI 433MHz Colorful Light Doorbell Welcome Chime Doorbell 52 Songs Optional Customized Melody Night Light Wireless Motion Detection Alarm System with 1pcs Doorbell Button
Overview:
This doorbell alarm host adopts the advanced wireless transceiver technology, strong microcomputer control system, and high-quality voice processing technology integrated with 52 songs. Stable and reliable performance, receivers and transmitters can be paired on the wireless code. It integrates with the function of welcome, burglar alarm, doorbell, colorful light, etc. It is suit for home, office, store, factory, villa, shop, hotel, reference-room, chamber, leisure center, etc.

Features:
*Contains 1pcs Doorbell Alarm Host+1pcs Doorbell Button.
*Total 5 Modes: Welcome mode, Doorbell mode, Alarm mode, Night light mode, Song customized (TF card).
*Customized Melody: Support max 32G TF card, and save format: MP3 or WAV as the audio file.
*52 songs optional, with 5 Volume levels adjustable. Dazzling colorful lights indicate every different state.
*Memory function in main unit, the melody status of switching on is the same with that of last settings on device.
*It's not only a doorbell but also an alarm system, can work with KERUI remote controls, doorbell buttons, sensors and detectors.
*Doorbell Button also can act as SOS/Emergency Button: In alarm mode, when any emergency thing happened, such as intruder in house, or heart attack etc, press the panic button to call the family member or caregiver for help.
Doorbell Host
Specifications:
Working Voltage: External USB DC5V/3 AAA battery (not included)
Internal battery: 3*DC 1.5V  AAA battery (not included)
Standby Current: <10uA
Working Current: <300mA
Wireless Distance: 300 meters(in open area) 
Doorbell Alarm Host(without bracket): Approx. 88 * 88 * 28mm / 3.5 * 3.5 * 1.1in
Doorbell Alarm Host(without bracket): Approx. 87g / 3.1oz  
Doorbell Button
Specifications:
Working voltage: 12V DC
Battery Type: 12V 23A (included)
Standby current: ≤5uA
Sending distance: 100m (open area)
Doorbell Button Size: Approx. 50*50*16mm (L*W*H)
Doorbell Button Weight: Approx. 40g / 1.4oz
General
Specifications:
Wireless Frequency: 433MHz(±75 KHZ)
Material: ABS, common white
Operating environment: -10°C to 50°C        
Humidity Range: ≤95% RH (No freezing)
Package Information:
Package Size: Approach. 14.5 * 9.9 * 7.3cm / 5.7 * 3.9 * 2.9in 
Package Weight: Approach. 250g

Package List:
1 * Doorbell Alarm Host
1 * Doorbell Mounting Bracket
1 * KERUI F52 Wireless Doorbell SOS Button
1 * Double-sided Tape
1 * Set of Mounting Screws
1 * User Ma