Using this remote control unit is a breeze. First, make sure it's connected to the correct power supply. Once powered on, you can easily use the 16 buttons to control your device. Just press the corresponding button for the function you need. As for maintenance, keep it in a dry and clean place. Avoid dropping it or exposing it to extreme temperatures. If it's not working properly, check the power connection first. That's all you need to know to get the most out of your remote control unit.