The bot itself is actually called “Little Orange” and is one of a range of package-sorting devices made by Chinese company Hikvision. Human workers place packages on top of the seat cushion-sized Little Orange bots, with these items scanned and then ferried over to the correct chute. Each bot can carry parcels up to 8 kilograms in weight and travels at a maximum speed of 9.8 feet per second.
Sources: The Verge