Feature: 1. Main Functions: Simultaneously connects two HD sources to one HD display terminal with optical and stereo headphone outputs via HD Multimedia Interface out 4 ports, allowing easy switching or splitting of four HD Multimedia Interface devices to two HD Multimedia Interface compatible displays or projectors. 2. Sound Extraction: Sound format support for LPCM DTS5.1, for Dolby AC3 and intelligent EDID management, which can be set as a user guide to adjust the resolution and sound format, any incoming HD source can be extracted either individually or simultaneously through the SPDIF or 3.5mm sound output ports, and the sound is restarted each time it is set up on the HD Multimedia Interface machine, with the sound extracted through the HD Multimedia Interface device. Interface machine is restarted each time it is set up, sound is sent through the HD Multimedia Interface Output 1 port. 3. Compatibility: Supports HDCP 2.2 and 1.4, compatible with HD Multimedia Interface 2.0 Input support: PC, for PS3, for Xbox, for Xbox one, for Switch, HD player, for Fire TV, cell phone ( HD Multimedia Interface adapter required) TV or other HD Multimedia Interface devices. Output support projector, HDTV, monitor, splice screen, billboard or other HD Multimedia Interface devices. 4. Premium Aluminum Alloy Material: 4 in 2 out HD Multimedia Interface switch is made of aluminum alloy shell, which is helpful for heat dissipation, anti rust and more durable. Plug and play, no driver required. 5. Wide Application: The 4 in 2 out multi video box provides solutions for noise, space and security issues, data center control, information distribution, conference room presentations, schools and corporate training environments. Specification: Item Type: 4x2 HD Multimedia Interface Switch Material: Aluminum Alloy Plug Voltage: 100-240V Remote Control Battery: AAA Battery x 2 (Not Included) HD Multimedia Interface Resolution: Up to 8K 60Hz Support Video Format: 8 10 12 Bit Color Depth Support Sound Format: for LPCM, for DTS, for Dolby AC3 Maximum Baud Rate: 40Gbps Maximum Operating Current: 300mA. Package List: 1 x Video Splitter1 x Power Adapter 1 x Remote Control 1 x Instruction Manual Note: Remote control shipped without battery, 100‑240V.