Voice-activated recording is a convenient feature for hands-free recording. Great for lectures and interviews. Robust metal design offers extra durability. Features 3 specialized stereo microphones for capturing distant speakers. Stereo MP3 and PCM recording for clear playback and easy file sharing. Free smartphone app for remote audio control and for easy sharing of recordings. Tripod mount for optimal stable positioning. Smart recording and playback functions for best recording results. Audio scences for automatic perfect audio settings in any situation. 2147 hours of recording time. MicroSD memory card slot provides virtually unlimited recording. 8 GB MicroSD Memory. 2" LCD screen. Windows, Mac OS and Linux compatible. Rechargeable li-polymer battery.