1. Metal battery adapter plate for NP-F series battery, such as NP-F550, NP-F750, NP-F970, etc. 2. With USB charging interface, you can charge the battery via the USB port quickly. 3. With DC 12V 2A (5.5 x 2.5mm) & DC 8V 3A (5.5 x 2.1mm) outputs, which enables you to power your cameras by NP-F battery conveniently. 4. With 4 indicator lights(25%-50%-75%-100%) to show the remain battery capacity clearly. 5. 1/4 inch screw holes and cold shoe adapter allows you to mount the battery plate to camera, camera cage, or other devices . color:Black :Metal Package Contents: 1 x Camera rabbit cage Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.