Experts say to look for these advanced features in portable CD players:
- Anti-shock technology keeps CDs spinning smoothly during constant motion. Portable CD players with strong anti-shock systems (like Sony's G-Protection) deliver reliable sound, regardless of where you use them.
- The newest portable CD players boast battery lengths of 40 hours and up. Most use AA batteries. You can use AA rechargeable batteries as well.
- The quality of your headphones determines the quality of what you hear. Most experts agree that the headphones included with portable music devices don't sound great and aren't particularly comfortable. See our report on
headphones .
- The best portable CD players have nifty features such as shuffle and repeat track. Many players sport "resume" technology, which allows you to start listening to a CD right where you left off. Other features include FM and/or AM radio.