By far the worst unit I ever purchased! Very poor sound quality even though hi end headphones used. EATS batteries! Complicated to use / excessive buttons. I didn't even try the MP3 aspect. Overall a horrible unit. I should have trusted my brain when I saw Sony but I took a chance after reading reviews. I have MUCH better quality with RCA & Philips bought for 1/3 of the price at Walmart. Item being returned to Amazon same day!