Effective device management 3 HDMI input ports and 1 HDMI output port let you switch between up to 3 devices to a single display with ease. Fast and stable signal transmission The latest smart chip enables fast, stable high-definition signal transmission with no lag, flicker, black screen, or buzzing. High-definition output Maintains full resolution for an impressive HD presentation and supports efficient signal distribution across multiple displays without loss of quality. Practical and versatile Non-destructive installation, easy to connect to different interfaces. No additional power is required. Compact size: 6.5 x 6.5 x 1.5 cm, making it simple to install anywhere. Use scenarios - Home entertainment: switch a Blu-ray player, game console, and streaming device to one TV. - Office or classroom: present content from laptop, media player, or other sources to a projector or display. - Retail or showroom: run promos or demos from multiple sources to a display wall.