We provide PROFESSIONAL entertainment and use only professional DJ equipment. Are you concerned about backup equipment? I would be too! We always have an extra component for every part of our sound system. We are the only DJ service in our immediate area to have all 'powered' speakers ; meaning, if one speaker goes out, you will never know because they are their own power source and the event will go on. Most DJ services have speakers connected to one amplifier, but if the amplifier goes out, the whole show shuts down! You will have no worries with us. Have you ever been to a wedding and the CD skipped because too many people were jumping? Vibration is no problem because we have only non-skip professional CD players. We are a fully digital DJ company, but we always have a CD backup in case a laptop failure does occur. Lighting? We have more than enough lights to illuminate the dance floor and increase the dancing energy. We now use the latest in lighting technology, LED lights!