Both of us use MP3 players. A charger can be purchased for under $10. Each of our MP3 players have had as many as 18 books on them. I use both ear buds and a connector to the sound on boom boxes, radios, stereos and to the MP3 player in vehicles. Coupled with ear muff hearing protectors I listened to stories while driving tractors, lawn mowers and working with saws and planers in my wood shop. My MP3 player is 3 years old and only holds about 4 hour charge. The spouses is 6 months and holds a charge for two days. They are probably in use 8 hours a day or more.
