"MobiBLU has served up another tasty looking MP3 player, the DAH1000. While the DAH900, reviewed in the past, had a sporty look and feel to it- it appears that MobiBLU decided to go for a more professional look; I have zero complaints. This 1.3 Ounce player is slim, sleek and polished. The surface of the player is extremely smooth and shiny. The logo and volume labels are all metallic print. The DAH1000 is compatible with three file formats: MP3, WMA, and ADPCM which is used for voice recording. The data storage of the DAH1000 is in the form of built-in flash memory which comes in 128MB, 256MB, or 512MB sizes. Like the DAH900, there is ability to add additional memory so what you get is what your stuck with. 128Megs of memory will play 2 hours and 17 minutes of 128 Kbps music, the 256Meg player will play 4 hours and 34 minutes, and the 512Meg will obviously play 6 hours and 51 minutes."