Thank you for viewing! Instant purchase is welcome! Working and maintained product 1987 model SONY STEREO CASSETTE PLAYER WM-504 23152 ・Main unit ・External battery box ・Gum battery (unconfirmed due to long-term storage) ・Charger ・Instruction manual (copy) ※The reel-type tape in the image for operational demonstration is not included in the sale. A rare and popular model, the original see-through design WM-504, is in its original manufacturer's condition. This is a gem that allows you to enjoy the wonderful analog sound of the time, which is absolutely impossible with current devices. The drive is quiet, almost silent, during playback. It has been restored and maintained so that you can continue to use it for a long time. Appearance】 The 500 series, including the 504, sometimes have capstan shafts that are rusty or have been polished under the guise of maintenance, but this can make tape running unstable, so please check carefully before purchasing. This item is in a clean condition, so you can use it with confidence. The main unit has deterioration from age and minor scratches and paint peeling, but it is in good condition for its age. The battery terminals are also clean. The external battery box for AA batteries and the gum battery charger are also in working condition. Please check carefully before purchasing. Operation check】 All functions can be used. An instruction manual is included. ※Please consider the gum battery as a sample as it is unconfirmed. We recommend using a new one. Maintenance details】 Disassembly and cleaning of major parts Removal of deteriorated rubber parts Cleaning of internal parts such as gears and pulleys Long-duration drive test Replacement of all rubber parts (drive belt, pinch rollers x 2) Application of an appropriate amount of oil to the gear shafts Gear assembly adjustment Cleaning and demagnetization of the tape head Adjustment of tape speed (pitch) to normal value Cleaning of the exterior Although it has a wonderful appearance and sound quality that you wouldn't think is from a device made about 40 years ago, it does not guarantee the performance of a new product. For those who can enjoy vintage audio, both in appearance and sound quality, thank you. #GCR_Lab First generation Walkman TPS-L2 WM-2 WM-DD Japanese music Western music Recording media