1.APP & remote control.The multifunctional app and WiFi connection allow you to preset schedules, select cleaning modes, locate A7, and check cleaning records or accessories status with your phone. A7 also receives signals across a straight path within 8 meters from the screenless remote control. 2.Anti-collision rubber guard. The front part of A7 is protected by 4mm rubber stripes with 5mm rebound resilience, so it won’t damage the furniture or itself in case of collision. 3.The low-power charging base achieves a high charge rate on a single charge which helps maintain A7’s accurate and stable operation. Its distance sensors have a 3m range in front and 1m on both sides. 4. Two suction levels .Defaulted to normal mode, A7 can be easily switched to Max mode to meet specific cleaning needs on different floor types.