ADJ Products LED Lighting (WIFLY EXR Battery) Perfect wireless accessory to use with a DMX controller Battery Life: Up to 20 hours Battery life and WIFLY wireless signal strength indicators on side panel Magnetic bottom plate for temporary, quick and easy mounting to metal fixtures or objects Compatible with all ADJ WiFLY products Up to 2500 wireless feet (open line of sight) with only other "EXR Extended Range" WiFLY products