Hey There mchawkins,
The resource below will explain what to do if iTunes does not recognize your iPod shuffle.
If you don't see your connected device in iTunes for Mac - Apple Support
https://support.apple.com/en-us/HT203979
The iPod Shuffle Features Guide below has an explanation of the status lights on page 7.
iPod Shuffle 2nd Gen Features Guide
https://manuals.info.apple.com/MANUALS/0/MA197/en_US/iPod_shuffle_Features_Guide .pdf
iPod shuffle: Checking the battery charge - Apple Support
https://support.apple.com/en-is/HT1510
iPod shuffle (2nd generation) has two status lights, one on the top, and one on the bottom, that let you know when you've pressed a button, the state of the battery, that iPod shuffle is enabled as a disk, or if there's something wrong.
For best results, charge the battery fully the first time you use iPod shuffle. A depleted battery can be 80-percent charged in about two hours and fully charged in about four hours. If iPod shuffle isn’t used for a while, the battery might need to be recharged.
Here's what the battery status light means when you turn on or disconnect an iPod shuffle (2nd generation):
- Green = good charge (30% - 100%)
- Orange = low charge (10% - 30%)
- Red = very low charge <10%)
- No light = no charge
- alternating green and two orange for 10 seconds = ERROR: iPod shuffle must be restored
You can find more information at iPod shuffle (2nd generation): Understanding status light behavior
Hope that helps ...
- Judy