The OM SYSTEM LS-P5 Linear PCM Recorder offers professional filmmakers, YouTube enthusiasts, musicians, Students, and Journalists the sound quality and versatility for which the LS Series of audio recorders is renowned. With a compact and robust design, the LS-P5 is an ideal companion as a stand-alone recorder or a camera video accessory. 16GB of built-in memory offers up to 7 hours regarding quality in 96kHz/24bit Hi-Res, or 21 Hours in CD quality. micro SD cards can also be used up to 2TB in size (XC Type I) . Including 2 AAA Ni-Mh rechargeable batteries which can be charged via USB. In addition, parallel powering and charging of battery supported with power delivery power supply. Whether you are connecting an external microphone or using as a camera microphone, the LS-P5 offers both MIC-IN and LINE-IN as well as headphone-out. Slate Tone allows you to send reference signal your digital camera for easier editing. Test Tone allows to set camera audio recording levels