The Trombia Free has the look of an oversized robotic lawnmower, measuring some 3.52 m long and 2.3 m wide (11.5 x 7.5 ft), though that can increase to 3 m with two gutter brooms added. But its job is to slowly move through city streets, cleaning as it goes.

It makes use of LiDAR and machine vision tech to trundle around cleaning up city streets and pathways, is able to avoid obstacles on its own and can operate in all weathers, day and night. Though the electric street sweeper can get up to 10 km/h, it's limited to between 2 and 6 km/h (1.2-3.7 mph) for sweeping and dust removal operations.

The company says that it uses less than 15 percent of the power required by current heavy suction sweeping technologies, which shapes up as 6-10 kW of power for urban cleaning, where large diesel street scrubbers might each use in the region of 70-130 kW, according to Trombia.