Features: 1. Av Audio And Video Switcher, High-Fidelity Design, Clear Images Without Distortion 2. Supports Two-Way Switching, Supports Sd, Mechanical Button Switching, High-Quality Circuit Board, Metal Casing 3. Easy To Connect, Easy To Understand, 4 Host Outputs, Switch To One Monitor Output 4. Clear Image Quality Output, High-Fidelity Design 5. Mechanical Button Switching Description: 1. Product Name: AV (CVBS) Switch 2. Resolution: SD 3. Product Features: Support Audio Output 4. Transmission Distance: Av Input/Output2m Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Size: About 8.8 x 13.6 x 3.8cm Material: Metal colour: Black Package Contents: 1 x Audio Switcher 1 x Chinese And English Instruction Manual 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.