RCA has launched its new Pearl digital audio players, which join the increasing ranks of devices that double as USB key drives, having a port built right in. Pearls support MP3, Audible and WMA/WMDRM-9 files, and have backlit LCD displays, with several different colors and languages. Owners can record audio directly through an inline microphone, or expand their storage by inserting a microSD card. This should also allow users to share music with their mobile phones.

Another notable feature is the battery life: while only needing one AAA battery, the low power requirements of a Pearl mean it can last as much as 15 hours. Currently on sale are 1 and 2GB players, retailing for $39 and $48 apiece. [via Crave]