Remote cordless doorbell 2 to 1,wireless digital doorbell manufacturer - HZ-A16-w21

Specifications

* Receiver Size:95*60mmemittersize:75*42MM
* Type: 2to1-emitter(remote control)× 2+receiver(sounder) × 1

it can combine: 1 to 1, 1 to 2, 2 to 1
* The remote controlpower:<10mw
* ReceiverRated voltage:AC220V50Hz/60Hz
* Receiver controlled volume: 20-80dB(eight stallsvolume,canbe adjusted,uniquedesign)
* ReceiverStandby Current:<1.0mA
* Receiverplug: USplug
* Workingfrequency:315MHz±2MHz
* Accessories:emitterbuilt-in12V23Aalkalinebattery1( our from factorywitha normala year or sogenerallyshopping insupermarkets)
* Implementation of the standards:Q/YG002-2008
* Packing:colordouble-sideddual-useblistercardmounted,greenpackaging and markingofthe"Roths"

Features

* Europeandesign style,fashion, simple,vulgarity;
* ComputerOptional3624polyphonicmusic(built-inamplifierandstereo speakers)
* industry-leading280-meterSuper remote/receiver distance(actualreceived signalastheenvironmentchangesdue toobstructionsdifferentsignals aredifferent, butthis section isthebestwirelessdoorbellsignal)
* emitterkey structurewaterproof design(mainlymoisturecannotbemounted directly to theexposedouteroh)
* Humanizedeightleveladjustable volume
* emitter,touch the buttonand never wear
* digital circuit design, stableand reliable performance;
* Princessmusicdoorbellproducts comply with CEqualitycertification standards,at the same timeasaradio frequencytransmissiondevices and equipmentin line withtheU.S. FederalCommunications CommissionFCC standards forelectromagnetic compatibility certification,proving thosedoorbellproductswithoutharmful effectson the environmentandwill not harm thepersonal safety.

two kinds of colour optical, white or black