80 cards with 40 musical instruments and one Audio CD. The games of Sonix series are specifically designed to promote the following skills in your child: perception, discernment, acoustic memory, logic, observation and language skills. Before the game must be activated the random play function on the CD player to listen to each round a new track. Some games are old familiar games like Memory and Lotto game. Some games are new. Players listen to CD and must be the first to find the pair with the correct instruments. Player with the most pairs at the end of the game is the winner.