Features 4 Way Audio Switcher: Our audio switcher does not need to repeatedly plug and unplug the cable, avoid wearing the socket contact point, 4 ways can input and mix different audio sources at the same time, Perfect Performance: All input and output terminals of the audio splitter are made of elongated gold plated copper, with large contact area, perfect performance and ultra low signal loss, which can perfectly match different styles of audio equipment. Supports Simultaneous Work: In addition to the basic mono switching function, the function of the 4 way audio switcher also supports the simultaneous working mode of all channels, that is, 4 ways can work in parallel at the same time. No Interference: The USB interface only supplies power to the driver board, and does not interfere with the audio input and output circuit, and does not affect the sound quality. Easy Operation: You only need to press and hold the key of the channel that needs to work at the same time for 2 seconds until the light of the channel lights up. Specification: Item Type: Audio Splitter Switcher Box Material: Aluminum alloy, red copper VU Meter Audio Input Mode: Support stereo RCA or microphone pickup mode. Audio Output: 4 way stereo RCA Working Voltage: Micro USB, DC5V 0.5A (VU2-D), DC 5V 1.5A (VU2-L) Backlight Filament Voltage: DC/AC 6-12V 100mA (VU2-L bulb only) Backlight Filament Current: 10mA (VU2-D only) Remote Control Function: Support Switcher Working Mode: 1 in 4 out or 4 in 1 out Pointer Sensitivity Adjustment: Support manual quick adjustment Gain Adjustment: Support manual quick adjustment. Gain Mode: DB or ACG. (Note: DB is generally used for recording situations, ACG is used for most common situations) Dynamic acceleration, deceleration damping mode: support Switch Function: Support Set Power Down Save: Support Package List:1 x Audio Splitter Switcher Box 1 x Remote Control1 x USB Data Cable1 x Instruction Note:The parallel working mode is recommended to be the best only in the mode of 1 input and 4 outputs (that is, 1 player is input, and 4 groups are connected to the front stage or power amplifier). If used in 4 in 1 out mode, the sound may be distorted. Package List 1 x Audio Splitter Switcher Box 1 x Remote Control 1 x USB Data Cable 1 x Instruction