my favourite piece of technology

My favorite piece of technology is my pendrive, I need listening music all through the day! and whit my pendrive I can.

when child I have a personal stereo, I loved it! because  I got it by winning a competition, but as use battery work a little time and consume many batteries (them batteries pollute much! and they were costly).
    In change the pendrive it can charge up whit solar energy and work for a lot of hours.
       I can store many songs, the some different style: from different styles of rock, classic musician, folk, meditation until song to dance, and being so small, I can carried in a pocket, I can running listening music, reading in the metro listening music, traveling is brilliant!.
      
       For my a life whithout music is like a movie without a soundtrack.