The cajon drum (pronounced ka-HONE) is basically a wooden box enclosed on all sides. On the front side, a thin piece of laminated wood is attached forming the playing surface. A sound hole is then cut in the back or side of the drum to allow air to escape. The cajon drum may also include guitar strings or snare wires that rest on the playing surface, which allows it to produce a snare drum effect. This is a very popular drum used in a variety of Latin music styles, but is also very quickly becoming an important part of many musical forms.
To play the cajon drum, a drummer sits on it and plays the front side with his or her hands (between the knees). Bass tones can be produced by hitting near the centre of the playing surface, and sharp slaps are achieved by striking the top edge. The top of the front face (the playing surface) is often left a little loose so that a wood-smacking sound can be produced when it is hit. The side of the cajon can also be hit to produce more interesting sounds, and the heel of the foot can be used to muffle the hand hits. Additionally, through the use of brushes or rods, more unique sound effects can be achieved.
For more info:
http://www.shopercussion.ca/store/Latin-Drums-Percussion/Cajon-Drum
