The push pump is pressed by hand, the air inside the pump is pushed out and the reed sounds. This set contains one octave, 8 notes.

Place it on a flat surface and press or strike the top middle center of the instrument to play. Press slowly to produce a long sound, press quickly to produce a short sound, press strongly to produce a loud sound, and press 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.