LightWorks Remote Control Module for Uber & Lyft Signs: USB Receiver for Glow Light Signs Operates on radio frequency Control your Uber or Lyft sign and other products manufactured by LightWorks Labs remotely Red light confirms button operation & transmission of signal, and shows approximate strength of battery Includes 7 different blinking, pulsating and flashing modes Allows you to change the speed of each blinking mode, as well as the brightness of the sign (100%, 50% or 25% illumination)