Before you actually hook yourself up and want to know what sort of audio tone is going to come out of your lead wires, this handy lightweight speaker will let you know in an instant the sound and strength of output.  You can continue testing if you wish, scrolling or selecting either the built-in routines for your power box, or play audio or routines from your computer and play them through these small speakers to hear what you will be experiencing.  By turning the sound up and down on your power box, you will hear the distinctive low to high pitch coming out of the small speaker.  

NOTE: The description in the picture says 45.3 inches.  This is the length of the lead wire.  The diameter of the small speaker is 2.4 inches.

The input to the power box uses a 3.5mm male audio jack.  If you have a 2.5mm female audio jack on the power box, you can get a 2.5mm male to 3.5mm female adapter in our Wiring and Adapter section.