Using the Datavideo AD - 10 Audio Delay Box is simple. First, connect the power using the USB Type - C cable. Then, choose your input source, whether it's a microphone or an audio line. You can also select the type of microphone (condenser or dynamic). Next, adjust the sound delay using the easy - to - use knob until the video and audio are perfectly synchronized. For output, connect your speakers or other audio devices to the stereo RCA sockets. When using the device, avoid exposing it to extreme temperatures outside the 0 - 40°C range. Also, handle the cables gently to prevent damage. To maintain the device, keep it clean and dust - free. If there are any issues, make sure the connections are secure and the power supply is stable.