It is possible to make a variety of sounds from the Push Pumps by pushing down with the hand!

When a push pump is pressed by hand, the air inside the pump is pushed out and the reed sounds.

It is a set of one octave, 8 notes.

Place it on a desk etc., and press or strike the top middle center of the instrument to play. Pressing slowly to produce a long sound, pressing quickly to produce a short sound, pressing strongly to produce a loud sound, and pressing lightly to produce a soft sound.

For  good coordination skills and a lot of fun, you can play the Push Pumps by attaching to your arms or legs. Just use a commercially available elastic, rubber or string to thread through the base.