This unit doesn't come with a power supply. Before buying, make sure to check your country's wireless frequency regulations, as some frequency ranges may be illegal in certain countries.

To use the Sennheiser ASA 1 Active Antenna Splitter, first ensure you have a suitable power supply as it's not included. Connect it according to the basic antenna connection methods. Before using, check your country's wireless frequency laws and regulations. If the frequency range you want to use is illegal in your country, don't use it. For maintenance, keep it in a dry and clean place. Avoid exposing it to extreme temperatures and humidity to ensure its normal operation and extend its service life.