Although unused, it is being sold as junk because the operation has not been confirmed. The box is dirty. A compact activity meter that can manage calories for 24 hours. - Brand: OMRON - Model Name: Calori Scan 306 - Color: White - Power Supply: CR2032 (1) - Size: Approximately 78.0 x 33.0 x 10.0mm - Weight: Approximately 25g Thank you for viewing.