Extendable side brush (exclusive to Bcdroid)

Unlike conventional robot vacuums that rely on fixed-angle side brushes, Bcdroid introduces an exclusive outward-extendable side brush.
When the robot approaches walls, corners, pet litter areas or furniture edges, the brush intelligently swings outward, capturing debris that traditional circular paths always miss. Pet hair along skirting boards, kibble under cabinets, and dust trapped in corner angles — finally addressed at the source, not left behind.