I am on leave and will be back to work on Thursday. I am not going anywhere. My main objective of these 3 days is to clean my room. That’s how I spend my vacation … 
When I was cleaning my computer desk this (early) morning, I realized that I had something very very special:
Yes. This is a sound system from Microsoft but Microsoft discontinued this product some time ago. I bought this when I was visiting Microsoft campus (for training) many years ago. I have been using this for more than 7 years and it is still working very fine. I love it so much. 
