RX-7 FC3S RE Amemiya Engine sound! Super Sound Premium Top Speed Legend Yatabe 1987 - It's been about 15 years since I bought it. - I don't have a button battery, so I can't confirm the sound. I'm not sure if it works, so please understand. - The case has fine scratches and other marks. The outer box also shows signs of use. Please refrain from purchasing if you are overly concerned about condition. Please consider this item only if you understand that it is a used item.