For V-lock batteries. The audio slot allows a direct integration for wireless audio receivers. It includes a buffer battery for up to 30 sec buffering for changing batteries without powering down the camera. It provides a 2ch analog audio output and includes a customized cable for the AMIRA 5pin XLR input. It is compatible with all receivers supporting the “Unislot” interface (not available for Sony receivers) It replaces the camera battery adapter and is available as AB Gold mount or V-Lock version. Made in collaboration with Ambient Recordings.