A well-regarded Sony product, a high-function tape recorder with auto-reverse. Uses two AA batteries. Although not stereo, it has two speakers and the sound is good. It has a full range of functions, including record/playback, fast forward/rewind, auto-reverse, speed control, 2x mode, counter, VOR (voice-operated recording), and an earphone jack. The belt has been replaced with a high-precision one and the speed has been adjusted. There are some minor scuffs on the four corners of the back, but overall there are few scratches or stains, and the front has a clean metallic design. It has a smooth feel. If you are looking for a high-function cassette tape recorder, please consider this one. I will include some free Evolta batteries for testing. Note that auto-reverse drains the batteries a little faster, so it's a good idea to use an AC adapter. I can provide the genuine AC-ES3010 (pictured in the 7th photo) for 1900 yen. Can be shipped with other tape recorders (200 yen discount). Please comment in advance. If you have a broken tape recorder, I can repair it. Please see my profile. The following are common notes for used tape recorders: * These are items from 20-30 years ago. Performance is not necessarily equivalent to new. They are more likely to break down than new ones, so please handle them with care. * I haven't been able to check all the functions. * I have wiped the surface with alcohol, but there may be stains that won't come off or things I've missed. * When you receive it, please press the play button before inserting a tape to make sure the spindle rotates. * If it doesn't rotate, check the pause function. Also, try new batteries (pay attention to the battery orientation). Furthermore, try pressing each button one by one. * Next, insert a tape and press the play button to check if the tape rotates and sound comes out. If it doesn't rotate, the tape may be the cause. * Old tapes may not run smoothly, and rewinding the tape may help. * If the tape rotates but there is no sound, check the volume. If the pitch is off, check the 2x mode and speed control. * The sound will distort if you turn up the volume. The sound quality is not comparable to a large boombox. * If the record button cannot be pressed, the tape's record tab may be broken off. * If you leave the batteries in, they will leak. Remove the batteries after about a month.