Features: Easy to operate for beginners. You do not need complicated procedures that you can use it. This VU meter adopts high definition backlight display, it can be used normally at dark environment. VU meter : the most basic tool in equipment, easy to install and use, can improve work efficiency, save-time and energy. This VU meter and driver board set features high accuracy and sensitive pointers response. Widely used in recording studio, mixer, home, etc.. Specifications: Material:ABS Internal for DC-impedance: 650Ω±10% Insulation resistance: above 50Ω Bulb: 2.8-3.8V 20mA Current sensitivity: 1000uA±10% Friction: ±1mm Test environment: temperature: 20℃±5℃, humidity: 40-85% Size:Approx.9x7cm/3.54''x2.76'' Package Includes: 1x VU Meter note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.