Sonata ELS: A lightweight compact mobile patient lifting hoist with innovative and ergonomic design. The Sonata ELS is an easy to use everyday lifter. With a safe working load of 150kg the Sonata ELS offers an outstanding lift capacity in a small patient hoist. The Sonata ELS offers all the versatility of the original Sonata, with the added advantage of Electric Leg Spread. This allows for ease of lifter leg adjustment on carpeted surfaces and/or with the heavier client on board.