Surround lighting - discover the next level of immersion with philips hue surround lighting. sync on-screen content through the philips hue hdmi sync box and have your smart lights seamlessly mirror whatever you are watching, playing or listening to What's required? - philips hue bridge and colour smart lights (sold separately) are required for surround lighting. simply plug in your new sync box, download the hue sync app and follow the on-screen instructions to get started Sync with movies and tv series - enjoy cinema-like experiences and expand your on-screen content through your smart lights and into your room. see action movies, sports, magical fairy tales and more come to life with bright colours through smart lighting Light up your gaming - highlight your in-game actions with your smart lights. from slow-moving effects that match in-game environments, to fast flashes during action-packed gameplay, philips hue pulls you deeper into the game Personalise your experience - tailor your entertainment experience through the free Hue sync app and customise the brightness, light intensity or synchronisation modes with video, audio and game The issue related to making frequent buzzing noise can be a reason that it is not fitted in the socket correctly, try a different socket and see if buzzing continue. Alternatively this could be because the light bulb has been dimmed using a traditional dimmer switch. Check you are logged into Philips hue account, and use serial number if Bluetooth function is not working.