OK. I'm going to try something different but they do work, if only for a while. They only last a couple of months but I'm a very heavy user. This works a lot better then the straight adapter I got at radio shack. Do not buy the straight 2.5-3.5 adapter (the one with no flexible wire)! I had 2 of them have adapter tips break inside my treo. Luckily, sprint techs gave me a break both times and replaced my phone for free. I saw that someone had recommended the sedio adapter. They said it isn't on A but I was able to find this one from Sedio - ADA-25M35F - under Semco. So I'm going to give it a try.

Doesn't matter if it was made by Palm or not.

If I were you, I wouldn't use it on a Treo 650 - except temporarily for testing purposes.

Frankly, the audio jack on the Treo 650 is a known weak point. And it can break in a way that permanently silences the phone's built-in earphone.

If you want to read more about this, just Google "treo jack".

This L-shaped adapter can apply too much leverage on that little 2.5 mm jack. I you want a demonstration, go borrow an adapter, plug it in, and you'll see exactly what I mean.

Better get the type with a flexible cord. Sure, that kind eventually gets flakey - but it's cheaper to replace an adapter than to get your phone repaired.

The adapter works perfectly in full stereo, not many complaints other than the size of the thing. I plan to be careful with it because it has quite a bit of leverage to be able to inflict major pain on my Palm Treo if bent or stressed.

It's a good product, but it's very big and with a bad move, it can broke the phone. Use it very carefully. I recomend to use a bluetooth stereo headset to avoid damage your Treo.

It does exactly what it's supposed to do. Didn't break when i dropped it.