Gold Member Since 2011
Audited Supplier
Shenzhen Slinya Electronic Co., Ltd.

Door Bell, Wireless Door Bell, 2 Receiver Bell manufacturer / supplier in China, offering Wall Plug 200m Range 36 Music 2 Receiver Remote Control Portable Wireless Door Bell, Portable Fast Charger Short 10cm Lightning Type C Chargering Data 2 in 1 Keychain USB Cable for iPhone X MacBook, RFID Concert Multi Color Light Remote Control LED Bracelet and so on.

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Supplier Homepage Product Security & Protection Wall Plug 200m Range 36 Music 2 Receiver Remote Control Portable Wireless Door Bell

Wall Plug 200m Range 36 Music 2 Receiver Remote Control Portable Wireless Door Bell

Purchase Qty.:
1-999 1,000-4,999 5,000+
FOB Unit Price: US $6.8 US $5.1 US $3.7
Purchase Qty. (Pieces) FOB Unit Price
1-999 US $6.8
1,000-4,999 US $5.1
5,000+ US $3.7
Get Latest Price
Port: Shenzhen, China
Production Capacity: 5000 PCS/Day
Payment Terms: T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: KD78
  • Style: Many-to-One
  • Automation: Non Automation
  • Wireless: Wireless
  • Wireless Video Doorbell Function: Outdoor Monitoring
  • Brand: OEM
  • Power Source: Plug
  • Trademark: OEM
  • Specification: CE
  • Type: Remote Doorbell
  • Talkback Type: Speech but Not Visible
  • Peephole: Peephole
  • Active Doorbell: Wireless Non Visual Doorbell
  • Application Scope: Home
  • Waterproof: Waterproof
  • Color: White
  • Transport Package: Retail Box
  • Origin: Shenzhen, China
Product Description
Portable waterproof entrance door bell, Wall Plug 200m Range 36 Music 2 Receiver Remote Control Portable Wireless Door Bell

Instruction Manual
Before using the product for the first time, please read the instructions for use below and retain them for later reference.



1. With a flat headed screwdriver fold pen the bell push. According to the given polarity input an LR 23A (12V) alkaline battery. 

2. Receiver: Connect the bell to a 90-260V network.

3. 4 levels adjustable volume

4. 36 varied style of tunes for optional


Installation Notes:

1.Transmitter:clean the case first and paste the double sticker,then put the transmitter on the wall.In order to make it work properly,the height should be >1.5m.

(Warning: please do not install on the metal door/window)

2. Receivers: plug into the socket.

Walls and metal objects will shorten the range,and may interfere with its operation(metal fence,door,gate...)furthermore devices using radiofrequency can do the same(computer,microwave oven,television...)

3.The shorter distance (between transmitter and receiver), the signal will be better.



unique and elegant style

low-power consumption design, power saved and durable 

Range in open spaces: Max. 200-300m

36 varied style of tunes for optional

4 levels adjustable volume

transmitter and receiver can be paired freely


Add transmitter and/or receiver

Firstly plug into the socket, press volume button for 3 seconds, red led light keep on, then 

press transmitter button, when receiver red led flash, means pair successfully. 

It will fail paring if you can not finished within 3 seconds

Attention: One receiver can pair 4 transmitters at most, and with memory function once off power.



Please hold press volume button before plug into socket, then 

will remove all been paired receivers. 

(Attention: only pairing errors happen, then use this way.)



Working voltage: 90-260V

Standby current: 7mA

Working current: 60mA

Working Frequency: 433MHZ



Working voltage: 12V 12V23A*1pcs

Working Frequency: 433MHZ

Standby current: 1μA

Working current: 12mA

RF standby power: 0 dbm

Working range: about 200-300m (on open air)


Failure Analysis and Troubleshooting:

1. Doorbell does not ring

F: receiver host isn't plugged in or tune mute 

A: plug into socket or adjust the volume keys

F: Transmitter battery positive and negative anti-loaded

A: Reinstall the battery

F: Transmitter and receiver pair unsuccessful

A: Re-pair


2.Range become shorter

Please make sure the doorbell away from metal objects.

Buildings, walls, enclosed space will decrease the transmission signal.

Battery voltage or power is not enough will shorten the distance, or misuse ring.
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