ITEM NAME:Audio level indicator, Power level indicator, level indicating module KA228 B1V6 Audio level indicator, Power level indicator, level indicating module KA228 B1V6 Chip: KA2284 Supply voltage: 3.5V-12V The magnitude of the level can be adjusted AC and DC signals can be controlled by jumper PCB board size: 29 (mm) x21 (mm) Colour: blue Material: CCL Package Included: 1 x KA2284 Power Level Indicator Battery Pro Audio Level Indicator Module Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.