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1. Gyroscope technology 2. Modular design 3. Wifi & App. Alexa and Google voice control 4. Japan Nidec brushless motor,1200 Pa actual test for large suction 5.2600 mah Lithium-ion battery 6.450ml dust box. 7.400 ml water tank 8. Multiple cleaning methods: sweep/reel/suction/drag 9. 7cm ultra-thin design 10.3 Suction mode: Quiet/standard/Strong 11. Noise: ≤60 dB 12. 8.Multiple cleaning way: Sweeping/Rolling/Vacuuming/Mopping 13. High efficiency Hepa filter screen 14. Automatic recharging (when the electric quantity is less than 20%) 15. Anti-collision, anti-drop, lift detection, dust box detection, the obstacle ability of 1.2 cm Virtual wall.