Feature:1. Offers 7‑band equalization and sound customization, the frequency can be adjusted in the range of 50Hz‑16 kHz.2. It has a dedicated subwoofer electrical level output to enhance subwoofer control.3. There is an auxiliary input on the back for playing additional audio sources.4. Low distortion, the THD at 1V output is only 0.01 percent, which is dependable to use.5. Comes with bracket, it is allowed to be installed under the dashboard, console or any suitable place.How to Use:1.PowerConnection:TheblackGNDisconnectedtothepowerground.YellowRemoteisconnectedtotheremotecontrolcableoftheCDplayer.RED+Bisthepowercord,connectedto+12V.2.LoutputLchannelofSUB3.SUBRoutputRchannel4.FRONT'sleftoutputLchannel5.FRONTRoutputRchannel6.LoutputLchannelofREAR7.RoutputRchannelofREAR8.LinputLchannelofCD9.RinputRchannelofCD10.LinputLchannelofAUX11.RinputRchannelofAUX12.AUXrightvolumeadjustment13.AUXleftvolumeadjustment14.CDrightvolumeadjustment15.CDleftvolumeadjustmentSpecification:Item Type: Car Audio EqualizerMaterial: Plastic + MetalColor: BlackPower Source: 10-14.4V DCInput