Amazon with Dreametech Official has the Dreametech L10 Pro 4000Pa Robot Vacuum Cleaner & Mop w/ Lidar Navigation (Black) for $490 - $90 off coupon (check "Apply coupon" box) - $74 off with coupon code L10PRO91 [Exp 9/10] = $326 with free shipping. I have a different model from this brand and have been really impressed.