I have two spare black Amazon Echo Dot (2nd Generation for sale), that I bought direct from Amazon in the US. These are still sealed. They come with the a US plug on the USB adapter and a standard micro USB cable, so you have a choice whether to use a travel adapter or just use your own USB power adapter.

There aren't officially supported in NZ, but there are instructions in on here with setup instructions. If you know how to load your own APK on Android then you'll have no problems. A lot of fun to play with, they work well with spotify and can be used to control home automation. You can connect to external speakers via cable or bluetooth. The internal speaker in them is fine for general use, and better than I expected, but not designed for hardcore music listening.

$80 each for pickup in Christchurch, or I'm happy to ship at cost. Expecting to sell these individually but you can buy both if you want to.

Photo of one in it's box (next to a white one which I'm not selling):