Sony ICD-UX533BLK Digital Voice Recorder with Direct USB & Built-in 4GB + Stereo Headphones + Rechargeable Battery + USB Cable + HeroFiber Ultra Gentle Cleaning Cloth 4 GB of available internal flash memory provides ample space for recording up to 1,073 hours Capture every nuance, distant or low volume, with great clarity via a 2-element stereo microphone array Supports MP3/WMA/AAC playback with a five-band EQ, Memory Card Expansion Slot Automatic/Manual Record level, Sync-Record Mode, Bright White LCD Backlight Easily search for recordings by date via a built-in calender, USB-Direct PC and Mac compatibility