Capacity: The "20L" indicates that this microwave has a capacity of 20 liters. This is the interior volume, and it determines how much food or liquid the microwave can hold.

Power: Microwave ovens typically have a power rating measured in watts. Higher wattage usually means faster cooking. However, the specific wattage of the Sharp R-211D (W) would depend on the model, and I don't have access to detailed specs beyond my last update.

Features: Microwave ovens can have various features, including different cooking modes (e.g., defrost, popcorn, reheat), adjustable power levels, timers, and more. The specific features of this model would be listed in its user manual or product documentation.

Design: The "(W)" in the model name might refer to the color or finish. It's common for microwave ovens to come in different colors or finishes to match kitchen aesthetics.

Safety: Microwave ovens come with safety features like child locks and door sensors to ensure safe operation.

Price: The price of the Sharp R-211D (W) can vary depending on where and when you purchase it, as well as any additional features it may have.