Sounder, A.K.A. Experiment 109, is an illegal genetic experiment created by Jumba Jookiba. He is designed to shatter glass (does so by using a high pitched whistle he makes with his ears that are at such high frequency that it shatters glass).
Experiment 109 was the 109th genetic experiment created by Jumba with Hämsterviel's funding. He was designed to shatter glass.
109 and the other first 624 experiments were deactivated and smuggled to Earth by Jumba during his mission to capture Stitch)|Experiment 626.
All of the experiment pods were released and scattered across the island of Kauai.
At the unknown point, he was activated, captured, tamed and named Sounder.
- Sounder's pod color is purple.
- Sounder is described by the experiment computer screen that says "Experiment 109 Primary function: Designed to shatter glass".