Lanparte Battery Back Pack Plate Adapter Power Supply Pinch With Internal HDMI Splitter for Sony V-shoe V-Mount V-Lock Battery External / for DSLR Camera Video Light Mount Type: Sony V-shoe Mount. Can power an onboard camera light or broadcast accessory. Material: ABS Flame-retardant plastic and Aluminum Smart charging function.Built-in HDMI splitter. It is a device which can connect the battery and videoing devices together.