Description/Features: Multiple devices can switch freely 4K high-definition 3D visual effects Stable transmission and rejection of flashing/ghosting. Equipped with high-performance chips inside, ensuring stable signal transmission and fast screen switching Audio and video synchronization output supports 5.1/7.1 channels and stereo sound, with multiple audio surround outputs for a pleasant concert hall like experience<br><br>Compact, durable, and space saving Specifications: Material:PC+abs color: Black button cell:1 Resolution: 4K x 2K (backward compatibility) Main control chip: LT8631UX x 2+N76e003AT20 Interface material: nickel plating Version: HDMI Compatible 1.4 Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use<br><br>Package Contents: 1 x Switcher 1 x Power supply cable 1 x Infrared receiver 1 x Remote control<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.