The SARAMONIC SR-AX104 is a 2-channel XLR audio adapter with preamplifiers and phantom power, ideal for any DSLR cameras with a built-in microphone jack. Wide-variety of audio devices like professional condenser microphones, wireless microphones, external audio mixers, sound boards and more can be connected to the camera via this adapter. The SR-AX104 makes your recording work much easier.Level Meter allows you to verify the proper input levels in real time, the output signal can be adjusted by the level controls for optimum recording. The phone jack lets you monitor the audio from the adapter during recording, or camera during playback. The AGC disable feature reduces noise during quiet moments of recording by stop using the cameras’ Auto Gain Control function.