* 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
1 transmitter button triggers (rings) 1 chime units bell.
Long Range: Operating range up to 1,000ft/300m in open area ensures you to hear the bell and answer the door in time.fives levels of adjustable volume from 25db to 110db（In the case of an obstacle at least 500 feet）.
Multiple Volume Option - 3 levels of adjustable ringing volume over than 85dB within 0.5m/1.6ft, 36 different chimes and three chime modes: Chime, Flash.
Easy Chime Design - Lead-free, non-toxic, Classical & piano black surface.
Easy Installation - The chime unit can be free standing or wall mounted with the included hardware, the push button can be fixed to the doorframe with screws or the attached adhesive tapes.