1. Analog Dual VU Meter + Audio Switcher Box 2. 4(1)-In-1(4)-Out, Used As A 4-Way Audio Splitter, VU2 Can Work In 4-In-1-Out To Compare The Sound Quality Between Different Audio Sources. Mobile Phones, Tablets, , Cd Players, Dacs, Etc., So Can Work In 1-In-4-Out Mode To Compare Between Preamplifiers, Headphones, Power Amplifiers And Powered Speakers, Etc. Without Repeated Plugging And Unplugging. Cable To Avoid Wearing Out The Contact Socket Points. 4 Channels Can Be Input Simultaneously To Mix Different Audio Sources, And Can Also Be Output Simultaneously To Meet Monitoring Or Recording Requirements. 3. Used As An Analog VU Meter, With Wired Stereo RCA Input And Wireless Microphone Input, Can Work With The Most Common Audio Devices Such As Mobile Phones, Computers, Cd Players Or Speakers, Perfect For Home/Office/Studio Systems To Dynamically Decorate Your An Auditory Feast. 4. The VU Meter And Switch Are Controlled Independently. The Usb Interface Of Vu2 Is Only Used To Power The Driver Board Of The VU Meter And Will Not Cause Any Interference To The Audio Input And Output Circuits. The VU Meter And Switcher Are Controlled Independently. The VU Meter Only Reads The Audio Signal From The I/O Interface And Does Not Affect The Sound Quality. 5. Unique And Powerful Design, Cool Black Case And Colorful Indicators Look Retro And Dynamic. All Input And Output Terminals Are Made Of Elongated -Plated Copper, With Large Contact Area, High Performance And Ultra-Low Signal Loss, And Are Equipped With A Remote Control, Which Is Very Convenient To Use, Can Match Different Styles Of Audio Equipment, And Is Suitable For A Of Scenes. Description: 1. Audio Input: Stereo RCA Or Microphone Pickup 2. Audio Output: 4 Sets Of Stereo RCA 3. Working Mode Of The Switcher: 1 In 4 Out Or 4 In 1 Out 4. Pointer Sensitivity Adjustment: Supports Manual Quick Adjustment 5. Gain Adjustment: Supports Manual Quick Adjustment (DB Mode/ACG Mode) 6. Gain Mode: DB Or ACG (Note: DB Is Generally Used In Recording Situations, And Acg Is Used In Most Ordinary Situations) 7. Working Voltage: Micro-Usb DC 5V 8. Working Current: 0.5a (Dark Version Blue) 9. Backlight Filament Voltage: DC/AC6-12V 10. Backlight Filament Current: 10mA (Dark Color Blue) 11. Dynamic Acceleration/Deceleration Damping Mode: Supported 12. Power On/Off Function: Supported 13. Save Settings After Shutdown: Supported 14. Settings Saved After Power-Off: Supported Mute Function: Supported (Note, If The Switch Works In 1 In And 4 Out, The Meter Will Continue To Beat In Silent Mode, And In 4 In And 1 Out Mode, The Meter Will Stop When .) Material: aluminum + plastic Color: as shown Package Contents: 1 x VU2 VU Meter Audio Switcher 1 x Remote Control 1 x USB Cable 1 x English Manual Note: The Remote Control Requires 2 AA Batteries, Which Are Not Shipped With It. Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use 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.