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 Switch Material: Aluminum Alloy Input Ports: 4 x AHD Output Port: 1 x HD Multimedia Interface Control Mode: Panel Buttons, Remote Control Sound Output: PCM2,5.1, For Dolby 5.1, DTS5.1 Video Bandwidth: 2.25Gbps Input Resolution: Support AHD 720P25, 720P30, 1080P25, 1080P30 Output Resolution: 1080p Rate: 60Hz Product Size: Approx. 177x79x22mm / 7.0x3.1x0.9in Remote Control Battery: 1 x CR2025 (Not Included) Voltage: 100-240V. Package List: 1 x AHD 4x1 Multiviewer Switch1 x Power Adapter1 x Remote Control1 x Instruction Manual Note: Please allow some error due to manual measurement.