BR151 2-in-1 Mopping Robot Vacuum Cleaner Artificial intelligence, IoT technology. The achievable smart lifestyle makes you clean and worry-free. Compatible with APP + Alexa You can control the smart robot vacuum through APP or Alexa voice commands, arrange and monitor cleaning, set cleaning modes and customize cleaning, and know the vacuum malfunction cause with your phone. Warm Notice: The APP only supports 2.4 GHz WiFi, which is compatible with Android and Apple. Please update the latest version of the app in time when you receive the robot. Intelligent Mopping System Mopping System and a high-capacity 230ml electronic water tank, you can set 2 different water flow levels for specific cleaning needs. Even penetration, mopping cleaner. Z-shape Route, High Coverage This robot vacuum cleaner defaults to a random cleaning path. The zigzag cleaning can be selected through the remote control or APP. Z-type routing has high coverage, less missed scanning and high efficiency. (When using, please pay attention to avoid collision