A330 Amtidy Robotic Vacuum Cleaner, Amrobot Mini Vacuum Cleaner Multi-model Cleaning - Auto, spot, wall following, full go mode, scheduling mode; Buffer Detection: It will either slow down for soft bumping, or completely avoid the object when moving closer to an obstacle; Automatically Recharge - The cleaner will automatically find charging docking station when in low power, after full charge, it will go on working; On-board scheduling - It can be scheduled to perform up to seven cleaning sessions per week; Cliff sensor - Cliff sensor detects stairs to avoid falling down;