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 Compact, , 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: Compatible 1.4 Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Package Contents: 1 x Switcher 1 supply cable 1 x Infrared receiver 1 x Remote control 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