iLife A4s Robotic Vacuum Cleaner Powerful cleaning master for deep carpet and floor cleaning: Side brushes sweep dirt to the cleaning path, main brush rolls up dirt, and powerful suction passage collects dirt into the dustbin. The system ensures A4s to clean thoroughly on carpet and all floor types. Easy to Use, you just Press the CLEAN button or set a weekly schedule and A4s will start cleaning, whether you're home or not. It is designed for large spaces cleaning, with high-capacity Li-on battery providing 90 mins of cleaning time and covers a cleaning area up to 2100 sq.ft. Advanced mini-room cleaning mode Mini-room mode allows A4s to clean specific rooms more deeply and thorougly in less time. Multiple cleaning modes allow A4s to clean according to your needs. Cleaning modes ( Auto, Edge, Spot & Scheduled ).A4s automatically goes back to its charging dock for recharge when battery runs low. With a full set of advanced sensors, A4s can avoid obstacles, getting stuck in corners and falls. Large Brush, for deep Carpet Clean, Anti-collision system: To protect the furniture ,Intelligent drop avoidance induction IR sensors at the bottom: To detect high gap, avoid dropping and also avoid the obstacles and change direction automatically by its inductor , Daily / schedule cleaning plan: Set the start time, and make the cleaning schedule at the fixed time even you are not in home, OBS sensors, 5 IR receivers on the body A4s recognize the barrier and avoid collision, The noise is less than 65dB, easy to help you solve the noise problem, 1000Pa strong suction Easy to absorb dust, hair, paper, reduce the pollution of PM2.5,  Multiple cleaning modes Automatic cleaning, border cleaning, spot cleaning, schedule cleaning  Suitable for the floor, cement, ceramic tile, wooden floor, undercoat carpet, etc. Built-in 4 Li-ion batteries,  Self Charging Remote Control with LCD Display Dust Box Capacity: 0.45L  Suction (pa): 1000pa Noise (dB): Less than 65dB Power (W): 22W Voltage(V): 14.4V