Feature: 1. Add timing function, APP control 2. Increase the gyroscope balance correction. 3. The original "bow" shape was set, now it is controlled by ic gyroscope, simulating real navigation. 4. Originally, the fixed-point cleaning was only the in-situ cleaning of the center point, but now it is a mosquito coil route extending outward from the center point. 5. Add mopping function. 6. The original charging is boost power charging, and now it is charging with IC scheme, with overcharge and overdischarge short circuit protection, charging is safer 7. The noise is lower than the original one. 8. Added functions such as edge clearing and timing. 9. The upgraded version adds a permeable water tank to mop the floor. Describe: Height: 5cm Water tank: 150ml Dust box capacity: 600ml Battery capacity: 2000mAh Suction: 2800Pa Product size: 30*30*5.5CM Charging protection: yes Weight: 1.65Kg switch: button Obstacle crossing height: 2cm Timing function: yes Control: APP control