1.LDS + line laser obstacle avoidance: A: SLAM LDS laser and various advanced mapping functions that provide user with the best route planning experience; B: 3D line laser obstacle avoidance technology that reduces bumps and stuck; 2. Large vacuum dust bag that work up to 65 days at a time Centralized dust disposal technology with 4,000mL large vacuum dust bag, working up to 65 days at a time. Reduce maintenance frequency and provide more convenience and ease to user 3. Quiet and effective cleaning 600W powerful motor with only 80dB(A) of noise. Clean effectively and quietly. 4.Powerful suction and long running time 4,000Pa strong suction, 5,200mAh large battery, which guarantees 150 minutes of extra long running time. Main Features:1.LDS + line laser obstacle avoidance:A: SLAM LDS laser and various advanced mapping functions that provide user with the best route planning experience;B: 3D line laser obstacle avoidance technology that reduces bumps and stuck;2. Large vacuum dust bag that work up to 65 days at a timeCentralized dust disposal technology with 4,000mL large vacuum dust bag, working up to 65 days at a time. Reduce maintenance frequency and provide more convenience and ease to user3. Quiet and effective cleaning600W powerful motor with only 80dB(A) of noise. Clean effectively and quietly.4.Powerful suction and long running time4,000Pa strong suction, 5,200mAh large battery, which guarantees 150 minutes of extra long running time.