The light was of good quality but we returned because it didn't light the room up like it shows. The light comes out the sides in beams so it doesn't project around the room and could only be seen in the line of the beam. Doesn't look like a disco really. You'd have to stick to the ceiling and even then the light show would only be in the ceiling. Seller refunded with no quibbles and in plenty of time though so good customer serviceArrived next day. No instructions except what is written on the box. Has a long USB lead which is good but only lights up in what appears to be a preprogrammed way. Doesn’t appear to react to the music in any way, still flashes when no noise at all.I saw this product down my local gym and thought how brilliant is that. This is not the same at all. What hasarrived requires USB charging - after trying with various - nothing at all happens. No instructions. No connection to UK mains socket A LEGAL REQUIREMENT OF EVERY ELECTRICAL ITEM SOLD IN THE UK (IEEE Wiring Regulations) and inany case simply doesn't work. When I looked at the item again at the gym, it has a transformer built in to a plug with a 9V connection socket on the disc itself. DO NOT BUY THIS - IT WILL NOT WORK AND YOU WILL SPEND TWO WEEKS TRYING TO GET YOUR MONEY BACKhave a disabled child, not used it yet, wrapped for christmas, hope it works, quick delivery, good price thankyouThe electrics are shoddy - the black wall socket plug has come apart exposing the wires and no longer even flashes. Great piece for a single use!