Bluetooth speaker that's designed to pair with a computer or mobile device. Safe for use in tough conditions, look it up on the web https://www.jbhifi.co.nz/portable-audio-fitness/wireless-speakers/ultimate-ears/ultimate-ears-boom-2-portable-bluetooth-speaker-phantom/303531/
Brand new: still in the original packaging and never been opened. Got them in a bundle with some other equipment, but don't need them.
I'll let these go for about $200 and throw in shipping. You can pick them up if you're in Christchurch. PM me for details if interested.