ITEM NAME:Power Level Indicator KA2284 Battery Audio Level Indicating Module, 6Pack Description: Product Name: Power Level Indicator Supply voltage: 3.5V-12V The magnitude of the level can be adjusted AC and DC signals can be controlled by jumper Package Include: 6Piece Power Level Indicator Specification: Material: plastic PCB board size: Approx. 29 x21x 13mm/ 1.14x 0.83x 0.51inch Package Includes: 6 Piece Audio Level Indicator Module Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand. Thank you! SKU: ALU0024693719431987.The magnitude of the level can be adjusted. 6 Piece Audio Level Indicator Module. PCB board size: Approx. Due to the difference between different monitors, the picture may not reflect the actual color of the item.