Simple structure,no need to learn music while playing,no need to recite music score,even no need to practice. It makes the most annoyingly graceful sound when you hum into it.And its perfect for replicating old Snes and Nes songs! It's made of aluminum alloy,light-weight and durable,comes with replacement filter. It's a perfect gift for families,friends,kids,musical lovers. There are many colors for your choice,and your logo is also welcome.
