The V-Mic D4 Mini is a compact and versatile microphone designed for recording directional audio signals and suppressing background noise. With a wind resistance of 20 mph, it is perfect for outdoor use. The microphone also features automatic assignment of an additional track when a second source is connected, making it easier to use with a right input channel. Best of all, it requires no batteries, as it is powered by 1-5 V from cameras, phones, and audio recorders. The D4 Mini comes with an offset shock mount, making it ideal for use with wide-angle vlogging cameras or action cameras. The side-mounted output jack is also perfect for hybrid DSLR filmmakers who want to use their viewfinder for photography. Additionally, the microphone has an input jack that allows for easy connection of a second audio source, such as a wireless microphone, without the need for a splitter cable. Please note that the audio signal from the input jack is combined with the audio signal from the V-Mic D4 Mini when using the TRS-to-TRRS smartphone cable.