Feature: 1. Accurate Resolution: VU56 Pro is a multi function music level meter display device with two color green, red display, each channel uses 56 bit total of 112 bit LEDs. Provides you with accurate resolution display. 2. Main Application: The scaled sound level meter allows you to monitor the music level status in real time and manage your recording data conveniently. Cooperate with a variety of dynamic display effects to add more fun to your work and life 3. Multiple Modes: PPM (peak program manual, 0dB=1.5Vpp) and VU (volume unit, 0dB=0.775Vrms) modes to meet different display needs. The color of the main bar and peak LED can be freely switched to green or red, and it also supports 8 display effects, more fun and more playable. 4. Parameters Saving: All setting parameters can be saved, and there is no need to repeat the settings when the machine is turned on next time. With a full featured remote, all settings can be easily adjusted from a distance and saved even when powered off. 5. USB 5V: This sound level meter adopts USB 5V power supply, which is convenient for use at home desktop, office, studio, etc. The power supply is only used to read the sound signal of the display board, which does not affect the sound quality. 6. 3.5 Audio Interface: The 3.5 audio interface ensures the tightness of the connection and effectively reduces the transmission impedance of sound in the line. Each group of RCA and 3.5 are connected in parallel. It is convenient for various audio input and output. 7. MIC Pickup Module: This sound level meter has a built in MIC pickup module. Even if the audio cable is not connected, it can also monitor the sound rhythm of the speaker. 8. CNC Black Shell: This sound level meter has a CNC black shell,which is durable and delicate. It can compatible with most common audio devices and perfectly matching various usage scenarios. Specification: Item Type: Dual Channel LED Sound Level Meter Material: Aluminum Alloy Input and Output Ports: RCA, Approx. 3.5MM Jack Stereo x 2 Groups Each Maximum Audio Input Voltage: 2.5Vrms (Over This Voltage. May Damage the Level Meter) Maximum Effective Audio Input Voltage: 1.8Vrms (the Maximum Voltage That can be Measured, if it Exceeds, Only Full Scale is Displayed) Monitoring Frequency Range: 20~20Khz Input Impedance: 10Kohm Support Audio Signal Source: Computer, Mobile Phone Decoder, CD, DVD, Player (Note: Speaker Output Connected to Power Amplifier and PHONO Output of Phonograph are not Supported) Display Brightness Adjustment: Support, a Total of 4 Levels Display Color: 2 Colors Optional, Green, Red. Remote Control Function: Support Remote Control Battery Type: 1 x CR2025 Button Battery (Delivery Without Battery) Display Length Gain: 3 Levels of Gain Adjustable (-3dB, 0dB, +3dB) (only Adjust the Display Length, does not Affect the Source Audio Signal) Display Mode: Peak Meter PPM (Peak Programme Meter) and VU Meter (Volume Unit) Main Beam, Peak Speed Hold Time Setting: Support Power Off Setting Data Saving: Support Signal Source: LINE IN or Built in Microphone Pickup Power Interface Specification: Micro USB Working Voltage: DC 5V 1A . Package List: 1 x Dual Channel Sound Level Meter1 x Remote Control(Delivery Without Battery)1 x USB Cable1 x Auxiliary Line1 x Manual