I bought the Tivoli Songbook, because I'm excited about the Audio One. The songbook I wanted to enjoy this good sound in the garden. The envelope I found first very nice, somehow reminds me of neoprene. No questions from the sound awesome - but after a certain time, the shell became unahnsehnlich and sticky, you like it, only touch on the antenna. Dust can not be removed. Once tried to wipe it off with a paper towel, böööser error :-) In the other reviews I've read similar, and found a simple solution. There is a cleaner that removes this shell completely, is called Solvent. After I sprayed the cleaner, I could the sticky bit mitein little effort completely rub and now have a surface like the silver Soongbook - only in blue!
