Smart Navi 3.0: Scans and maps your home so you can decide when, where and what you want cleaned. Systematic Cleaning Path: Methodical, back-and-forth movement saves time and battery power, increases the cleaning area size and provides a more thorough clean. Alexa, Google Home & Smart App Controls: Use Alexa or Google Home voice commands to direct cleaning. Use the ECOVACS App to customize, schedule & track cleaning sessions, monitor accessory status & receive error alerts.