Digital Voice Recording System Device - Voice Activated Audio Recorder with 4GB Built-in Flash Memory, Speaker, Microphone & Headphone Jack for Lecture, Class or Meeting - Pyle PVR200 4GB BUILT-IN MEMORY: The digital voice recorder allows up to 272 hours of recording, making it a perfect tool to use for lectures, meetings & classes. Let's you store up to 99 audio files without the need for additional memory cards VOICE ACTIVATED RECORDING: VOR function only records if there is sound and recording stops when sound stops. It also features a built-in speaker, microphone and headphone jack ( 3.5mm / 1/8'') EFFICIENT AUDIO RECORDER: The battery operated audio recorder has a digital LCD display to allow you to easily explore the features and see all the voice recorder information. It features a battery level indicator as well TRANSFERS FILES EASILY: Transferring to a computer is easy with this voice activated recorder. Just connect the recorder to your computer using the built-in USB connector and drag the files over to your PC. It also provides SP & LP recording modes LONG TIME RECORDING: It allows you to record up to 13.5 hours using 2 AAA batteries and enjoy up to 9 hours of playback on headphones or 3.5 hours on speaker. It conveniently fits in any palm, pocket or a purse for easy access and portability