Supports HDMI v2.0 Resolutions up to 3840 x 2160 @ 60Hz. Sleek- Modern Design with Tough Plastic & Metal Chassis. Gold Plated HDMI Connections for Optimum Signal Transfer. Smart Switching Function- Automatically Switches to Latest Live Input. Supports DTS-HD- Dolby-trueHD- DTS- Dolby-AC3 & DSD Audio Formats. Front LEDs Indicate Power & Live Inputs. Supplied with IR Remote Control & UK Mains AdaptorPower Supply: 100-240Vac- 50-60Hz Dimensions: 102 x 79 x 22mm (3 Way) & 138 x 80 x 22mm (4 Way) Weight: 90g (3 Way) & 118g (4 Way). Stylish- slimline HDMI switches that allow a single display to be connected to multiple HDMI sources and selected using the IR remote control or button on the unit. Gold plated connections ensure optimum signal transfer and the LEDs on the front of the unit inform you as to which of the inputs are live at any one time. This updated version has a smart switching function and will support HDMI v2.0 signals- compatible with the latest 4K digital TV boxes producing 3840 x 2160 @ 60Hz resolutions.. hdmi switch