Using this BSS BLU - BIB 8 - Channel Input Expander is easy. First, connect the correct power supply to the device. Make sure the power supply voltage matches the device requirements. Then, connect your audio or signal sources to the 8 - channel inputs. When using, avoid placing the device in a humid or dusty environment. For maintenance, keep the device clean by gently wiping it with a dry cloth. If you notice any issues, check the power connection and the input cables.