This uses an AI system to identify individual bits of trash using an onboard camera or, in murky water, sonar imaging. It then grasps the object with its four-fingered hand — capable of lifting items up to around a meter (3 feet) long and wide, and weighing 250 kilograms (550 pounds) — and brings it to the surface. There, the waste is deposited on a small autonomous boat which takes it to the shore for recycling.