Provided is an audio reproduction device capable of immediately starting to reproduce audio data, particularly compressed audio data, from an arbitrary point in a forward or a backward direction at an arbitrary speed. Only water is used as the electrolyte fluid without any additives. Thereafter, the overlay is placed upon the compacted top surface of the asphalt fill, overlapping onto the adjacent road surface and compressed. The restaurant has a plurality of hand held devices, the hand held devices facilitating a customer of the restaurant to place an orders in the restaurant by comunicating with the local server.