Sony Ericsson is celebrating the Walkman phone’s third anniversary by adding three new mobiles to the family as well as a small army of new accessories. All of these products will be available by the end of the year.

The mobile phone company is specifically debuting the W302, W902 and W595 Walkman cell phones to select markets around the world. It is also rolling out wireless and regular speakers as well as wireless and noise canceling headphones. More details on all of this and more can be found after the jump.