Item Type: VU Meter Header Material: ABS Size: Approx. 7.8x6x4.6cm / 3.1x2.4x1.8in Backlight LED: 12V 40mA Internal Resistance: 500UA 650 Ohms Use: Sound Speakers With Backlight Gallows Ammeter For DIY, Recording Studio, Home Sound, Car Sound Transformation, Etc. Gross Weight: 92g/3.2oz Package List 1 x Current Meter 1 x Plastic Frame 2 x Iron Piece 2 x Screw Please allow some error due to manual measurement. 1ABS MATERIAL: Sound DB level header is made of ABS material for excellent durability and stability, good performance and long life. 2HIGH ACCURACY: High accuracy VU meter header is equipped with a pointer type dial for high accuracy and direct display of measurement results. 3EASY TO USE: Sound VU meter is the most basic tool in sound equipment, easy to install and use, can improve efficiency, save time and effort. 412V 40MA BACKLIGHT LED: Power amplifier level meter is compact in design, easy to carry and store. 12V 40mA backlight LED, can be used normally at night. 5SCOPE OF APPLICATION: VU meter header is exquisite workmanship and practicality, suitable for DIY, recording studio, home and car sound modification, etc.