Featuring multiple chime options, handy volume control and long working distance, the wireless doorbell kit is a must-have accessory for home, office, store and etc.Indicator Alert.
Working distance: 300M In open area.
Working voltage of Receiver:110-220V
Battery in Transmitter:12V 23A (Not include since air delivery restriction)
We have EU/US/UK plug to choose, if you need AU plug, please noted that we will send a transfer plug to you. Please leave message to tell us which plug you need when you order