Using this FSR T2 - CARX Twister 2 computer A/V receiver is easy. First, connect it to your computer and make sure you use the included correct power supply. Plug in the power supply to a proper electrical outlet. Then, connect your audio and video devices to the receiver. You can now enjoy high - quality audio and video from your computer. When using, avoid exposing it to extreme temperatures or moisture. For maintenance, keep it clean by using a soft, dry cloth to wipe the exterior regularly. If you encounter any issues, consult the user manual or contact customer support.