This battery used in Ninja and Ninja PRO This allows artists to work seamlessly in any environment without worrying about empty power packs or power black outs. Power-pack key features: ️-A display in which you can view all your parameteres such as voltage, presets etc. ️-Controls to switch on and off the machine, adjust voltage and set favorite presets to quickly switch between your settings. Package include 1 pc wireless battery pack 1 pc usb charge cable