For power requirements utilizing a 4-pin XLR DC output, the NH-204V is a dual NP-style battery holder, and can power an on-board light or LCD monitor. Includes IDX’s Syncron and Digi-View (NP-L7 only).
Longer camera runtime using two batteries
Battery capacity data function allows displaying of the batteries
in camera viewfinder
Synchronization of on-board camera light with camera VTR
record mode