"With this device we have built in a speaker that you can not only take your MP3 files or digital audio files that you get from your music subscription services with you into your portable life… but you also aren't forced to only use that music with either a docking speaker or a headphone. You just simply slide out the speaker and you get full portability for the music in an environment without headphones." The slide out speakers may not be powerful enough to fill a room with sound….but they are good enough to let you enjoy your music collection without headphones or with a few friends. Samsung says the battery life is a whopping 30 hours with earphones. Use those built in speakers, though, and that gets reduced to about 6 hours. You can find the K5 online for about 260 dollars. Apple's new 8 gigabyte Nano….sells for about ten dollars less. Bloomberg Boot Camp, I'm Fred Fishkin.