S800

Pros: It looks cool, decent sound quality when it works.

Cons: Falls out of ear, unreliable "pairing", hard-to-use tiny on/off switch

The Bottom Line: IMHO Cardo Scala 800 is one of the worst because of poorly designed in-ear piece, slippery ear loop, hard-to-use power switch and unreliable pairing.

Review: As a perfectionist, I tried MANY bluetooth sets before finding the Cardo Scala 600 about 3 years ago. It worked so well, sold a few of my friends on it and upgraded to the model 700 when it came out. When I saw the 800, couldn't wait to try it. ...

Pros: Nice sound.

Cons: hot key features don't work poor poor re-pairing Awful tech support

The Bottom Line: Not for Treo 700

Review: I bought the s-800 and have regretted it since I took it out of the box. It paired just fine with my Treo 700w. It even worked well as far as sound quality. What does NOT work is the 'Hot key' function nor the redial function. I went to Cardo's website ...