【Product Description】 Size: A4 size (approx. 20x30x3cm) Weight: Approx. 1.3kg Load Capacity: Up to 30kg Accuracy: ±(10g + 0.5% of measured weight) Function: Supports Wi-Fi connection and enables real-time inventory management. When a box containing heavy items (such as beverages) is placed on it, the weight is detected, and when the stock runs low, it links with Amazon to place an order. *Please note that this is only for eligible products. It is said that over 3000 items are eligible. Thank you.