Review on Sceptre U275W UPT 27-inch 4K DisplayPort Monitor - 3840x2160P, 70Hz, Frameless, Tilt Adjustment, Flicker-Free, Built-In Speakers by Joey Murillo

Great monitor, nice panel, great 4k. Input lag feels good. But you can also pretend there is no audio output. I tried connecting this thing to my Philips 9500 and the sound was incredibly harsh with no bass. Didn't think anyone could ever mess up the headphone jack/audio out, but somehow this monitor did. Others have had this issue on the forums, so this is not a defective device. Don't count on them if you need headphones for serious monitoring, mixing, or even general music use. I called support and they didn't offer a solution.