Yeeco Mini Digital Amplifier Stereo Audio 12V Amp Board Amplify Module 15W+15W Dual Channel Power for Car Vehicle Auto Computer DIY Speaker Yeeco 2.0 dual outtput channel amplifier input;Built-in Potentiometer knob; can be used for AC/DC The audio amplifier,2.0 dual channel 15W+15W amplifier board; connected to 4-8 10-50W speaker This Dual-Channel Stereo Audio Amplifier,Compat design; portable and with large volumn Great application for for car vehicle auto computer DIY speaker No noise of the current when power on the device; high quality sound