A:AnswerI don't know about external power, but this model uses more power than the model that is not an MP3. I use rechargeable batteries and they have to be recharged after listening to one CD. The model that is not MP3 lasts at least 3-4 CDs, and often more.
A:AnswerIt's hard to say. The skip protection can vary. With regular CDs, it's one way. With MP3-CDs (CDs that are burned with .mp3 files to read), it's another. MP3 CDs are just data discs with files on them. CDs are a copy protected format that are filled with specific data in a certain format (like DVDs and Blu-ray's). The skip protection likely is determined by the disc type being read, how healthy the disc is (an immaculate one versus a scratched up one), so on.
