Any bluetooth speaker for PDA?

here is one portable speaker can be connected by bluetooth, it is best for using with PDA or Mobile phone or MP3 when going outdoor, you can control the player through the speaker: http://cgi.ebay.com/BLUETOOTH-Wireless-Speaker-for-Mobile-Phone-iPod-MP3-PC_W0QQitemZ220262888756QQcmdZViewItem?hash=item220262888756&_trkparms=72%3A552%7C39%3A1%7C66%3A2%7C65%3A12&_trksid=p3911.c0.m14.l1318