$ 229.98 – $ 50 = $ 179.98

Max Mode Cleaning: Increase your cleaning power by 2x whenever you need using the app or remote control.
Smart App & Voice Controls: Use Alexa or Google Home voice commands to direct cleaning. Use the ECOVACS App to customize, schedule & monitor cleaning sessions, accessory status, & receive error alerts
1-Year Warranty, plus Accessories: Includes (1) remote control, (1) main brush, (2) side brushes, (1) docking station & fantastic customer support