ITEM NAME:1pcs LM3915 10 segment audio level indicator DIY kit FES Nw Kit Model: AUL-10 LM3915 10 points audio level indicator kit (send two cable) Power supply voltage: DC9V - 12V PCB Size: 66mm * wide 28mm Light bars Dimensions: Length 62.5mm * wide 5mm * 10.7mm Audio input: 0 ~ 1.5Vrms Two indication modes: strip instructions and fire point instructions (implemented by the MOD circuit point) Package includes:.LM3915 10 points audio level indicator kit (send two cable). Audio input: 0 ~ 1.5Vrms. Kit Model: AUL-10.