ITEM NAME:TPA3118D2 DC 12V-28V 45Wx2 Digital HD Edition Audio Power Amplifier Board #gib Store Home Promotion Hot Item Add to Fav.1 X Audio Power Amplifier Board. Auxiliary input: 3.5mm headset. Input current: 3A. Input impedance: 1KΩ. Maximum power per channel: 45W 2. Due to the different display and different light, the picture may not show the actual color of the item.