AC operated
Easy to install
5 levels of volume control including mute function
Wireless remote control reaches up to 50M at unobstructed straight distance
Weatherproof transmitter with blue LED indicator
Superheterodyne learning code is applied, which sets up the specific melody selected by each individual transmitter that has synchronized with the same receiver.
Complies to IMDA approved
1 year warranty
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SOUNDTECH WIRELESS DIGITAL DOORBELL DA-339