This Clear-Com RM-400A 4-Channel Remote Station is a great device. However, it has some known issues. The lights may not turn on, and the microphone socket is missing.

Using this Clear - Com RM - 400A 4 - Channel Remote Station is simple. First, connect it to your audio system. Then, check the connections to make sure everything is properly plugged in. But be aware, there's a chance the lights won't come on, and it lacks a microphone socket. When it comes to maintenance, keep it in a dry and clean place. Regularly check the cables for any signs of wear and tear. If you face any problems, try restarting the device or checking the power supply.