The Bathmaster Sonaris Bath Lift features a reclining backrest for fuller immersion during bathing. It installs quickly and easily using suction cup attachments that adhere firmly to your tub wall. A simple two-button hand control raises and lowers the lift and reclines the backrest up to a 40 degree incline. Smart technology ensures that the lift won't lower if there isn't enough battery power left for it to be raised again after use.