Using these WorxAudio V8i line array loudspeakers is easy. First, connect them to your audio source properly. Make sure the cables are well - plugged in. When using, place them in a suitable position where the sound can spread evenly. Avoid exposing them to water or extreme temperatures. For maintenance, clean them regularly with a soft, dry cloth. Check the cables from time to time for any signs of wear and tear. If you notice any problems, it's best to consult a professional.