Feature:1. 4 IN 1 OUT: The switching control allows any of the input AHD signals to be displayed on the display through the HD Multimedia Interface output, while 4 AHD HD digital signals can be displayed on the same screen with HD Multimedia Interface.2. 1080P AT 60HZ: 4x1 multi switcher has a resolution of up to 1920x1080P, presenting a detailed picture with colorful image quality, and the output resolution supports 1080P at 60Hz. excellent sound output supports PCM2, 5.1, for Dolby 5.1, DTS5.1.3. TWO CONTROL MODES: 4 in 1 out multiviewer switcher with infrared remote control, panel button control two control modes, support power failure memory function, easy to switch operation. Meet your different needs.4. LOSSLESS TRANSMISSION: AHD 4 in 1 out multi switcher screen high speed lossless transmission, no delay in transmission. 2 ways to display the screen, allowing you to view a single screen or all 4 screens at the same time on the screen.5. APPLICABLE: Widely used in shopping malls, neighborhoods, car and other video surveillance areas, and a variety of splitting effects, output mode can be set. Aluminum alloy is lighter, more corrosion resistance, has good thermal conductivity and durability.Specification:Item Type: AHD 4x1 Multiviewer SwitchMaterial: Aluminum AlloyInput Ports: 4 x AHDOutput Port: 1 x HD Multimedia InterfaceControl Mode: Panel Buttons, Remote ControlSound Output: PCM2,5.1, For Dolby 5.1, DTS5.1Video Bandwidth: 2.25GbpsInput Resolution: Support AHD 720P25, 720P30, 1080P25, 1080P30Output Resolution: 1080pRate: 60HzProduct Size: Approx. 177x79x22mm / 7.0x3.1x0.9inRemote Control Battery: 1 x CR2025 (Not Included)Voltage: 100-240V.Package List:1 xAHD 4x1 Multiviewer Switch1 x Power Adapter1 x Remote Control1 x Instruction ManualNote:Please allow some error due to manual measurement.