Here is a keychain that stands out from the crowd. A keychain that is perfect for the space enthusiast. This keychain is not only a cool addition to your keychain, it can also make sounds. The NASA keychain has 6 iconic sounds: ‘Houston’, ‘Ignition’, ‘Lift Off’, ‘Countdown’, ‘Eagle’ and ‘One Small Step’. Product information: Sound machine with keychain Six iconic sounds: ‘Houston’, ‘Ignition’, ‘Lift Off’, ‘Countdown’, ‘Eagle’ and ‘One Small Step’. Requires 3x AG13 button cell batteries (included) Created from durable materials Recommended age 8+