Dictate documents & notes while on the move, then plug into a PC & transfer your files via USB to archive or manipulate. Also operates as a MP3 music player. Includes 4 GB onboard memory (expandable to 32 GB via SD card slot) & capable of recording in PCM (CD quality). Features auto-adjust recording, optimized recordings in any environment, overwrite & append capabilities, calendar search, instant one-touch stereo recording, visual voice level indicator, time stamp, selectable voice activated auto record & large high resolution display. Mac ® / Windows ® compatible. Recording Functions: One Touch Record; Activation / Review Functions: Audible Scan; Cue & Review; File Search; Recording Time: 1056 h; Microphone: Built-in High Fidelity Stereo Microphone.