The Samsung K3 is basically a K5 sans the speaker. However, the K3 now has an optional add-on speaker going by the name of DS200. The speaker has a built-in rechargeable lithium ion battery. The official specs on battery time are not yet disclosed, but based on tests of the K5 I would estimate it to be around 6 hours. It should be available sometime in March and retail for around $50.
Also from the K3 news department… The K3 will be released in two additional colors: lime and red. These will be hitting the shelves in March and May, respectively.
More photos from CES 2007 below.