1. 3*1 hdmi switch,suport 3D, full1080p 2. ZINC alloy shell 3. ... source input selection, which could be selected by button switch.It could apply to HDTV, DVD, digital top box ... 480i, 576i, 480p, 576p, 720p, and, 1080i, 1080pProducts specification:1) Working temperature: -10~ +70°C2) Working relative humidity : 5 ... cord 1pcsUse’s manual 1pcsRemoter control 1pcs 3D 1.3v 4*1 zinc alloy HDMI Switch (LJ4101)