Phone Holster for Samsung Galaxy Z Flip7/6/5/4/3, Flip Phone Specific Protective Leather Holster for Motorola RAZR+ 2025 2024, Cellphone Belt Clip Holster Carrying Pouch Card Holder(Black)

Congratulations, and welcome to the club! I've got a couple of MZ-N707s myself and I think they're fantastic little machines. For transferring audio from the computer to a minidisc, a lot of folks here like https://web.minidisc.wiki/ For recording from a mic? That's a rabbit hole of massive proportions. Use whatever mic you think sounds best for your application. Accessories can be found on the various Japanese auction proxy sites ( https://buyee.jp/ comes to mind but there are many others). There are also many very generous members of this community who will happily trade accessories or sell them to you for reasonable prices. If you're looking for a case for the recorder, you can fit it into one of these: https://www.amazon.com/dp/B0DQY9ZTSL Again, welcome!