OHM Electric RCD-R27N-K Operates on 4 size D batteries or an AC100V/DC6.0V power adapter. This listing is for the main unit and the power adapter. Batteries, earphones, and instruction manual are not included. Size: (Measured value, excluding handle) Width: Approximately 17.5cm Height: Approximately 16cm Depth: Approximately 6.5cm I have confirmed that all functions, including CD playback, track forward, track back, AM/FM radio reception, sound output through speakers and earphones, volume adjustment, and external audio input, are working properly using the power adapter in the image and my own batteries. There are scratches and dirt on the exterior. The pickup unit is clean. There is no battery leakage in the battery compartment. Please consider this item with the understanding that it is a used product.