MuVo Slim is a stylishly sleek digital music player. The super slim profile means you can slip it neatly into your pocket briefcase or purse and enjoy up to 8hrs of music wherever you go. And with a built-in FM tuner you can also enjoy and record all your favorite radio shows on-the-go. MuVo Slim also works as a personal voice recorder using a built-in mic for recording up to 16 hours of those all important notes or conversations. Being a mass storage device MuVo Slim is so easy to use - no drivers or software are needed to get started. Just plug it in and simply drag and drop your files between MuVo Slim and your PC or notebook. What's more its removable Li-ion battery recharges via the USB port so you'll never need batteries again or if you want carry a spare to extend your play time. Specifications Feature/Product Muvo Slim Features LCD Display 132x32 pixel Hardware Specifications Capacity 128MB or 256MB built-in flash memory Power Li-ion 3.6 VDC Battery Usage WMA 64Kbps up to 15hrs* of continuous playback on fully charged battery. MP3 128Kbps up to 17hrs* of continuous playback on fully charged battery. Size W x H x D 55.0mm x 85.0mm x 7.0mm Weight 35g (without battery) or 46g (with battery) Frequency Response 20Hz - 20kHz Channel Separation 63dB Harmonic Distortion Output < 0.05%