For sale: Roomba 890. A "kyu-un" sound is heard from the dustbin area at the start. The sound stops after a while. It cleans without any problems. I've had it for about 3 years and used it almost every day. It has cleaned 958 times and run for 1077 hours. Depending on the size of the room, it runs for about 1 hour and 10 minutes for 4 rooms (each room is about 6 tatami mats). The battery may not last long enough to return to the charging station. It will be packaged as shown in the photos, without bubble wrap. The shipping label will be attached directly to the box.