The BeachTek dxa-slr ultra is a two-channel, active xlr adapter with built-in preamplifiers for attaching external microphones and other audio gear to any DSLR camera that has a built-in mic jack. The dxa-slr ultra uses exceptionally low noise, wide bandwidth preamplifiers for superb audio. This allows you to record high quality audio directly to the camera which will always be in sync with the video. Direct audio recording eliminates the need to have a separate audio recording device and syncing the audio in post editing. The dxa-slr ultra is very easy to set up and use. It allows you to connect a wide variety of audio devices including wireless systems, mixers, sound boards and professional condenser microphones that require phantom power to operate. The inputs are transformer balanced for isolation and enhanced circuit protection. Built-in vu meters makes it easy to verify the proper input levels at a glance, while the level controls allow you to adjust the output signal for optimum recording. Built-in fast acting limiters prevent distortion from overly hot inputs for worry free operation. The phone jack lets you monitor the audio from the adapter during recording, or camera during playback. A unique feature of the dxa-slr ultra is the detachable rod support base to easily attach a matte box, follow focus and other gear to a rod support rig. The adapter mounts to the bottom of the camera and can also be mounted to any standard tripod.