Built an audio system for my 2 yr old granddaughter!!!

Last year when my grandson turned 2 I built him a Thing Board (pic below) and I just built this one for my granddaughter and added stereo so I can post it here. On top are a pair of KLH speakers and a PE digital amp and in back is a BT receiver.

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Kids will never know the world if they don't interact with it.....even at 2 years old.
My father taught me how a helicopter works when I was 5 years old and how the ruby laser was built and worked when i was 7 years old.Somehow i never forgot his graphite pencil drawing that neon bulb pumping the laser and 20 years later I was fixing high power industrial, medical and scientific lasers...