Bagless unit. LED screen and touch buttons. Non-collision bumper. Self-adjusting cleaning system for carpet, hardwood, linoleum & tiles. Stair avoidance detector (assures unit wont drop from stairs). Virtual wall detector. Wireless remote controller (lets you guide the cleaner in any direction to clean specific areas). UV light sterilisation kills most bacteria and viruses on the floor. Mop can be installed to improve cleaning efficiency. Auto-recharge docking station. 2200MAH NI-MH Rechargeable Battery (14.4V).