Olympus 4 GB Digital Voice Recorder (142585) Up to 1000 Hours Recording Time; 2.2 Inch LCD Color Screen; Voice Activation and Guidance; Scene Select 4GB internal memory and micro SD/microSDHC card slot Direct link to your Mac/PC with the USB direct design MP3, WMA and PCM recording and playback USB 2.0 High Speed; Microphone Jack; Earphone Jack Micro Secure Digital Card slot More than 1000 hours recording PCM(WAV)/MP3/WMA playback Audible & podcast contents Rechargeable Li-Ion battery