If your iPod Shuffle 2 is not showing up in Finder, it may be due to a number of reasons. Here are a few things you can try to fix the issue:
# Check your connections: Make sure your iPod Shuffle 2 is properly connected to your computer using a USB cable. You may want to try using a different USB port or cable to see if that helps.
# Update your computer: Check to make sure your computer's operating system and iTunes software are up to date. If not, update them to the latest version.
# Restart your computer: Sometimes restarting your computer can help fix connection issues.
# Reset your iPod Shuffle 2: Try resetting your iPod Shuffle 2 by toggling the on/off switch on the back of the device to off and then back on. If that doesn't work, try restoring your iPod Shuffle 2 to its factory settings using iTunes.
# Contact Apple support: If none of the above solutions work, you may want to contact Apple support for further assistance.
I hope one of these solutions helps you fix the issue and get your iPod Shuffle 2 connected to Finder.