I’ve heard about FM transmitters , anyone knows about one that can transmit mp3s to FM from my Windows Mobile PDA ( HTC Kaiser ) ?

FM transmitters will work with anything that has a headphone jack.

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Most mobile phones have a 2.5 mm headphone jack while FM transmitters and other music devices work with 3.5 mm jacks. While some newer music phones have adopted 3.5 mm jacks, you'll probably need an adapter (2.5mm to 3.5 mm) to use an FM transmitter with your phone.

Damn, good catch! I wasn't even thinking 'phone' when I read HTC Kaiser... I was just thinking 'PDA.' After looking at some pics of the Kaiser, I don't see a 2.5mm or 3.5mm jack... looks like you'll need a Mini-USB to headphone adapter. Double-check your phone to make sure though, I may have missed it in the pics.

NICE phone BTW... I am envious! I just got a Treo 750 about a week ago, I suppose I should try to hold on to this one for at least 6 months before I go upgrading again. Temptation...

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Turbochargers whistle while they work, superchargers whine while they screw.