From Manufacturer
The Saramonic SR-AX107 2-Channel XLR Audio Adapter from IndiPro Tools is a 2-channel XLR audio adapter featuring an isolation transformer which provides a pure, noise-free sound, as well as preamplifier and phantom power controls. The device allows you to connect microphones, wireless microphones, digital recorders, external audio mixers, soundboards, and more to your DSLR camera or camcorder via two balanced XLR inputs.
The unit is designed to save hours in post-production. An on-board level meter allows you to verify the proper input levels in real time, and the output signal can be adjusted by the level controls for optimum recording. The dual headphone jacks feature isolated volume controls, and allow you monitor the audio from the adapter at the input and output points. Left and right Peak switches allow you to turn on/off the LED signal indicators which flash red for overload, and the ACG on/off switch reduces noise during quiet moments of recording by cutting out your camera's Auto Gain Control function.