The Zoom M4 MicTrak is a 4-track recorder with two built-in X/Y stereo microphones pointing in opposite directions, enabling 360-degree audio capture in a single compact unit. It features 32-bit float recording, records to microSD, and includes a rechargeable battery. The M4 is the flagship of Zoom's MicTrak series, designed for immersive audio recording for video and spatial audio productions.