SONY WALKMAN WM-55 Black Purchased from pvphoto on Mercari on November 23, 2025. I have enjoyed it sufficiently and would like to pass it on to someone who wants it. I estimate the playback time to be about 8 hours. Everything works without any problems. The following is the description quoted from the seller: [Product Name] Serviced SONY WALKMAN High-Quality Cassette Walkman WM-55 BLACK There are some stains on the back, but otherwise, it is in very beautiful condition. [Product Operation: Serviced Working Product] After servicing, the operation of the main unit has been confirmed with two AA batteries. There are no traces of battery leakage, and the battery terminals are shiny and clean. The important pinch roller has been replaced with a new one, so there is no denting or slickness, and it has sufficient performance. The playback sound is clear, with no excessive noise, and can reproduce very good sound. Playback, stop, fast forward, rewind, and reverse have been tested for long-term operation. The playback speeds of FWD and REV are stable and normal, and the speed difference has been measured and confirmed to be within an acceptable range. There is no noticeable sound fluctuation, and the results of wow and flutter measurement are good. Each operation button and each switching button on the main unit have been tested. The volume adjustment has no scratchy noise. It is also equipped with a 3.5mm standard earphone jack, so you can enjoy it with commercially available earphones. Please refrain from using tapes longer than 90 minutes, severely deteriorated tapes, and poor-quality foreign-made tapes, as they may cause sound fluctuation, playback failure, or malfunction. [Servicing Details] The exterior and accessories have been cleaned, disinfected, and beautifully finished with alcohol wipes. High-quality, durable drive belts have been replaced (no inferior general-purpose products are used). Idler rubber ring replaced with a new one. The V-belt groove of the flywheel has been cleaned and precision-polished. Pinch roller replacement. Capstan cleaning. Each gear rotation part has been re-lubricated with silicone grease. The head has been precision-polished and cleaned to a mirror-like finish. Each metal contact part has had its oxide film removed and conductivity improved. Demagnetized with a TEAC head demagnetizer E-3. Wow and flutter measurement and speed adjustment with an ABEX 3KHz -10dB Flutter & Speed TEST TAPE. Azimuth adjustment with a TEAC 6.3KHz -10dB Azimuth TEST TAPE. Measurement of take-up torque during playback. -etc.- #CassetteWalkman #CassetteTape #WALKMAN #Walkman