The Commander Scroll Wheel Control

It may sound like a character from an Oliver Stone movie but in fact it is the heart and soul of the H2O Audio housing.

Let me break it down for…

iPod scroll wheel sensors work by using an electrical phenomenon called capacitance. Whenever two electrically conductive objects come near each other without actually touching, their electric fields interact to form a capacitance. The human finger is a good electrical conductor. When you place your finger on the scroll wheel a capacitance forms between your finger and the metal wires under the scroll wheel.

In a nutshell, the electrical conductivity of the Commander scroll wheel replaces the conductivity of your finger allowing you to operate your iPod underwater. Sweet…