1、Compatible with NP F Series Batteries: DC 12V, DC 8V, USB 5V DC output design to provide a better power solution for your SLRS, mirrorless cameras and other photography equipment. 2、Increase Friction: Panel base anti slip pad design, increase friction, protect the equipment from scratch, play a better protective role. 3、With Self Locking Button: Red self locking button, strong locking force, for quick battery disassembly and installation, provide you with convenience. 4、Easy Installation: With two 1/4 inch screws, you can easily install the battery holder to other devices, which is very convenient and fast for different installation scenarios. 5、Display Battery Power: With 4 indicators to clearly show the remaining battery capacity, can avoid the embarrassment of finding out the battery is dead when using the battery.