The remaining amount of the cassette deck cleaning fluid is up to the mark in image 8. I believe this falls under the category of retro audio equipment. Since I don't have an environment to test it, the operation has not been confirmed. This is a current condition item, so I will sell it to someone who is knowledgeable and understands. Please refrain from purchasing if you are overly concerned about details. I do not have expert knowledge, so I can only answer specialized questions to the best of my ability. Instant purchase without comment is OK. Thank you.