This device is a sort of small HDD in your hand but it could be better
if somehow fitted it with the cellphone, as it will not be hassle free
to carry two devices(cellphone and BluOnyx). The amount of data that
you can store in this device ranges between 1 GB to 40 GB. This 85 x
54 x 6 mm devices price ranges from $100 to $250. It works this way
get your data loaded in this via Bluetooth, SD card or USB and then
when you want to play it on cellphone it will relay it to your
cellphone via Bluetooth.....

http://askwiki.blogspot.com/2006/12/...or-phones.html

Good Day !!