Yesterday I bought a Radio Shack (274-004) adapter to allow me to use ordinary stereo headphones to listen to music on my 700p. (The 700p came with an earbud set, but I hate those things). The earbuds worked, but the adapter & regular headphones didn't. After some testing, I find that the 4-conductor plug on the Treo (& earbuds) have Left on the tip connection, Right on the first ring, and (apparently) microphone on the next ring, with the sleeve being the common (as expected). Apparently the Radio Shack adapter swaps the mic & one of the earphones. (This seems be the standard for regular cordless telephones, mic on the tip). Stranger still, I tried a set of stereo Plantronics hands-frees at Best Buy (after practically jack-hammering the plastic package open), They, too, only had audio on one side, even though they were touted to be for *listening to MP3 on your cell phone*.
Any recommendations on adapters that REALLY work with the Treo? -- Don [Non-text portions of this message have been removed]
