Only for remote control dimming. One controller can transmit the signal from the remote control to the another controller within 30 meters. As long as there is a LED strip controller within 30 meters, the remote control distance can be limitless. All the controllers should be the same group.
Different controllers can work synchronously when they are started at different times, controlled by the same remote control at the same dynamic mode and with the same speed.
When WiFi router disconnect, bluetooth connection control is a backup control methods.


