1、The switcher has 3 inputs and 1 output, which can be switched by pressing the button or by using the remote control. 2、Support the connection of 3 high definition multimedia interface devices, without repeated plugging and unplugging, free switching. 3、Supports high‑definition 4K video output and is backward compatible with other resolutions, smooth and not stuck. 4、Fully support simultaneous audio and video transmission, shocking sound quality and easily enjoy high‑definition lossless music. 5、The shell is made of ABS environmentally friendly material, which is light and durable, easy to carry and does not take up space. 1 x Switcher1 x Remote Control  Item Type: SwitcherFeatures: 1. Support high definition multimedia interface 1.4 version 3D function. Fully supports 1080p and 12-bit pixels. 2. Support the Highest Video Signal Amplification: 2.5Gbps 3. Manual switch and remote control switch 4. Compatible with HDCP devices 5. Support high-definition video, high picture quality, clear pictureSmart Function: 1. When the switch is powered on, it will automatically select the source device that is powered on. The selected priority is 1-2- 32. When you turn on the source device or enter the switch, it will automatically select the source device. 3. When you turn off the power of the source device or unplug the source device from the switch, it will automatically select whether the next source is the source device or not. The selected priority is 1-2-3Description: 1. When the source device is in the standby state, its 5V power supply must be cut off, otherwise the switch cannot realize the intelligent function. 2. When the high definition multimedia interface cable is inserted or unplugged, the switch is completely intelligent.Technical Index: 1. Signal input/outputInput Video Signal: 0.5- 1.0 volt p-pInput DDC Signal: 5V p-p (TTL)Maximum Range of Single Connection Signal: 1920 x 1200,1080POutput Video Signal: High-Definition Multimedia Interface 1.3b 3D + HDCP 1.0 / 1. 12. Support video formatVGA: 640x480, 800x600, 1024x768, 1920x1200DTV / HDTV: 480i / 576i / 480p / 576p / 720p / 1080i / 1080P 3. Digital signal input/output 4. Working Frequency: Frequency: Up to 250MHzField Frequency: 60HzVideo Amplification Bandwidth: 2.5Gpbs / 250MHzHD Support: (HDTV)Interlaced Scan (50 And 60Hz): 480i, 576i, 1080iProgressive Scan (50 And 60Hz): 480p, 576p, 720p, 1080pApplicable Equipment: External video equipment with high definition multimedia interfaceSize: Approx. 82 x 58.5 x 18.5mm / 3.2 x 2.3 x 0.7in