domestic auto vacuum with lowest noise

Dimension:φ360*92mm Weight: 3.5kgs Battery : 2200 mAh lithium batteryWorking time : 2 hours Charging time: 3-4 hours Input: 100-240 v 50/60 Hz Working noise: 48dbOutput: 24 V DC Voltage: 18-30W Applicable scope: short-haired carpet, wooden floor, tile, TerrazzoFunction: auto clean, auto recharge, anti-fall, anti-collision, mop,Features:1. LED touch screen, easy to operate2. Bluetooth wireless remote controller with 12 meters3. scheduling cleaning time as you want4.various cleaning mode: auto cleaning , zigzag cleaning, mute cleaning etc5. HEPA filter to avoid the second pollution6. can enter into different cleaning modes by day and night recognition7. pop- up dust bin, dump the rubbish more conveniently
domestic auto vacuum with lowest noise