8 different sound of urban ambiances and some industrial noises.

Drone Fly By - 0:09
Car Wheel Burst On Road - 0:08
Rumbling Car Pass By - 0:07
Electrical Generator Static Buzzing - 0:18
Underground Up Escalator - 0:25
Reservoir Flowing Down Water - 0:39
Urban Bird Ambiance - 0:37
Air Exhauster - 0:37