1、Easy Wiring: The kit includes 2 VU meters and 1 driver board, which is easy for wiring, connection and operation even for beginners. 2、Backlit Function: The VU panel meter has a backlit function, which can be read clearly even in a dim environment. 3、Adjustment Potentiometers: The driver board can control two VUs, potentiometers can adjust the brightness of the backlit, adjust the amplitude of the pointer swing, which is a good helper for the recording engineer. 4、Stable Performance: The VU meter adopts high strength ABS, and the drive board adopts precise wired PCB board, with stable performance and good durability. 5、Wide Application: This VU meter is suitable for DIY, recording studio, home audio, car audio conversion, medicine equipment etc. 2 x VU Meter1 x Driver Board6 x Wiring Cable1 x Audio Cable1 x User Manual Item Type: VU MeterMaterial: ABS, PCBMaximum Current Sensitivity: 1000uA±10%Internal DC Impedance: 650Ω±10%Insulation Resistance: More than 50MΩFriction: ±1mmPointer Length: 44±1mm from needle end to axesPointer Width: 0.45± 0.05mmMeter Installation Position: VerticalBacklit: Light transmission 3V 20MAScope of Application: Suitable for DIY, recording studio, medicine equipment, etc.Weight: Approx.206g/ 7.3oz