I believe this the first handheld pronunciation diagnosis system:
www.readsay.com/pro.htm
"The ReadSay PROnounce System listens to reading out loud and diagnoses
pronunciation. This can help learn to read and speak English. The
PROnounce System is pocket-sized and includes handwriting recognition,
so you can maximize your time spent learning English."
USD 455.00 at quantity 1 -- Ask about school district discounts.
