I have tested it and it works, but has its shortcomings.  Please note: there are a number of shorts that can affect any area any time.  The keyboard has some great sounds, but they sometimes change on you without any button being hit.  The speaker is kind of distorted like a speaker from the 90s would sound.  Some of the sound effect buttons stick or need to be pressed just right. Overall a fun toy for kids.  We enjoyed it for a good while.