Ericsson and Napster have teamed up to offer a music download service.

Users can buy and download music, ringtones and artist images to their mobile phones and PCs. They can preview, purchase and download songs on their mobile handsets through an integrated music player.

Ericsson will offer Napster Mobile as a hosted service to mobile operators that, in turn, make the offering available to their customers.

The service will be available in the first half of this year, said Hans Vestberg, executive vice president and general manager of Ericsson's global services business unit.

The service automatically delivers content to both handsets and PCs, enabling users to manage their music collection through one interface.