Full review here: http://www.stuff.co.za/ninebot-one-e-review-one-wheeled-wonder/
The Ninebot One E+ is an electric unicycle from Chinese manufacturer Ninebot. It has a top speed of ~22km/h and a range of 25-30km on a single charge.
An accompanying app for Android and iOS connects to the Ninebot using Bluetooth and displays live speedometer, wattage and temperature readings while also allowing the user to adjust the colours and patterns of the rings of LEDs on each side, or turn the LEDs off completely.
The Ninebot One E+ is available from Imperial Green Mobility (http://www.imperialgreen.co.za) in South Africa for R12,000.
SoundInsekt – “Hurry up and wait” (https://soundcloud.com/user7539469)