A highly professional and efficient tool for cleaning small areas and cluttered surfaces. Perfect for tight corners, it also cleans in reverse if necessary. The lithium-ion battery has a prolonged running time, making it 3 times more durable than normal lead batteries, it is completely maintenance-free and quick to recharge. The eco!efficiency mode reduces energy consumption, increases the running time and the noise level is lowered by approximately 40% making it perfect for operation in noise sensitive areas like hospitals or nursing homes.