The 16.5' LED IR Extender allows you to check usage status and change settings for your MobileMule DVR. This device acts as a receiver for your remote. Simply aim your remote at the LED Panel and use as you would normally to adjust the settings of your MobileMule DVR. You can also easily and quickly check the status your DVR by looking at the LED panel. This LED IR Extender can connect to the following DVR's: RVS-5500 RVS-5550 RVS-5530-Hybrid RVS-8150