The ADJ WIFLY EXR Battery is a battery-powered wireless DMX transceiver (transmitter/receiver in one) compatible with all ADJ WiFLY products. Once connected to a DMX controller, it allows you to send a reliable wireless DMX signal up to 2500ft (760m) line-of-sight when used with other EXR extend-range units. Key Features: - Battery life up to 20 hours on a full charge. - Wireless frequency 2.4GHz DSSS, designed to operate reliably alongside Bluetooth/Wi-Fi environments. - Magnetic bottom plate for quick and easy mounting to metal lighting fixtures or objects. - Supports up to 16 DMX-512 universes (via DIP switch channel selection) and is compatible with both 3-pin and 5-pin DMX In/Out connectors. - Dimensions (L×W×H): 148×135×62mm.