So, you think you’re all set with your iTrip, but what about that nifty MP3-playing Sony mobile phone you just picked up? No worries because now can jam away on your car radio or nearby stereo with all those tunes you have loaded up on your Walkman phone with the new Sony Ericsson MMR-60 FM transmitter.

This will work with all the Walkman phones (W900i, W800i, W550i, etc.), in addition to the K750i and Z520i. The fairly compact unit – 43 x 27 x 11 mm – is super-portable and you won’t even notice carrying it around in your pocket or handbag. After all, it’s only 9 grams.

Tune in to any FM frequency not occupied by a radio station in your area, get the tuner on the MMR-60 FM transmitter to match, and you can share all those wicked songs you’ve been tapping your feet to from your Sony Walkman phone. Now available, you can pick one up for about $50.