Cool tape music player

I really like this design from the brand design company. It looks like a tape box, but it's actually a tape-like music player, cool right? The brand design company has designed the two holes of the tape as switches. One can fast forward or rewind the music you're listening to when you twist and rotate it. The other one can provide power for your tape music player when you twist and rotate it - it's a power battery. It seems that it's not only cool in appearance, but also an environmentally-friendly green design. I really like it! What about you?