Aosu Video Doorbell SE The aosu Video Doorbell SE is a battery-operated video doorbell with 2K video resolution, full body view from head to toe and intelligent object recognition. The vertical 9:16 image format in combination with a 170° ultra-wide angle allows the entire entrance area to be captured and enables both facial recognition and parcel delivery on the ground. This means that both people and delivered parcels remain fully in view at all times.