The Astera AsteraBox CRMX Wireless DMX Transmitter is the link between your Lighting Console or Astera App and your Astera Lights. Features a built-in rechargeable battery for fast and easy setups. Receives Bluetooth commands from the AsteraApp™ and sends RF signals to Astera lights. Also works as CRMX transmitter box. Comes with charger, DMX cable, and carry case (able to fit 7" tablet inside). The ART7 can transmit up to 512 DMX channels with the most stable wireless DMX available.