product description:
Specifications * Product Name: Electrical Doorbell
* Type: Wireless
* Power Source: AC,Battery
* Model Number: A10BB
* Power supply: 110V-220V-240V
* Working frequency: 433MHZ
* Ring Tone: 38 ring tones
* Certificate: CE,FCC,Rohs
* Waterproof : Yes
* Mode: 12v 2-3A battery Receiving (battery not included)
* Distance: 1000foot/300M Remote (in open area)
* Size of Transmitter: ~75*51*20mm
* Size of Receiver: ~95*65*24mm
* Volume: 3 files(0-85db) (can be mute)
Key Product Features: * Touch the button configuration, superheterodyne learning code on the code mode
* The transmitter without screw chuck design to achieve waterproof and dustproof
* Double-sided stability of the PCB, the chip standby sleep up to micro-level
* The transmitter 12V23A battery factory pre-installed (not include battery)
* The use of microprocessor control, double-sided PCB micro-power design
* Great for home office villa hospital school factory
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