Hi, looking for a new doorbell for home. Have a reasonably large house with two entrances, so would like a doorbell system with two transmitters, and at least two receivers, and haven't seen anything available at a reasonable price in NZ. 

Found this on Aliexpress:

https://www.aliexpress.com/item/2-Buttons-3-Receivers-350m-Remote-Control-48-Song-Waterproof-Wireless-Doorbell/32792276159.html

Would that combined with simple EU to NZ adapter:

https://www.aliexpress.com/item/Promotion-Travel-Plug-Adapter-Adaptor-3-pin-AU-Converter-to-US-UK-EU-Universal-AU-Plug/32719325118.html

... do the trick? The receiver voltage is AC 220V, 50Hz, I understand I shouldn't have any trouble with this in NZ? It would only be around $40 NZD all up.

Thank you