1. Larger water tank: 240ml water tank for working time 2. Electronically controlled water pump: precisely control water at four different levels to avoid over damping or under damping the cleaning cloth while mopping 3. Mop detection sensors: automatically turns mopping mode 4. removal: OZMO Mopping System can remove over 99% of based on the test report from testing agency 5. Disposable mopping cloth: It's convenient to and change the disposable mopping cloth, of washing the washable mopping cloth repeatedly. The OZMO Pro Mopping System enables robots to deal with stubborn stains by using electrically powered high-frequency vibration works 480/min, and a unique fine mopping mode comparable to an electronic mop. colour:Black Material:plastic Package Contents: 1 x Water tank system 5 x Cleaning cloth Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.