Feature:1. Audio Level Meter: This sound level indicator set includes 2pcs VU meter and 1pc driver board, which enables easy testing.2. Reliable Working: Ensuring small distortion in the recording, also has 960uA maximum current sensitivity for high accuracy.3. Smart Adjustment: Both the backlight brightness and pointer swing amplitude are adjustable, making the viewing much clearer.4. Wide Application: Allows for wide application on DIY, home audio, car audio conversion and so on, very useful and reliable.5. Easy to Install: Comes with a light weight and a compact size, the convenient wiring will save your time in installation.Specification:Item Type: VU MeterProduct Material: ABS, PCBMaximum Current Sensitivity: 960uA 10%Internal DC Impedance: 650 10%Insulation Resistance: More than 50M. Friction: 1mmPointer Length: 441mm from needle end to axes. Pointer Width: 0.450.05mmMeter Installation Position: VerticalBacklight Board: Light transmission with backlight, 3V 20mA. Scope of Application: Suitable for DIY, recording studio, equipment, etc. Wight: Approx.206g/7.27oz.Package List:2 x VU Meter1 x Driver Board6 x Flexible Flat Cable1 x Audio Cable1 x User Manual