Play MP3 music from TF card, U disk, Bluetooth.Remote control: full function. With number key it can directly control.Self-equipped with switch, convenient to use.Fit for all vehicle.Item Name: Car bluetooth-compatible AmplifierBluetooth Version: 2.1 + EDRCodec: SBCVoltage: 220VMaximum Power: 50WImpedance: 4Loudspeaker Unit: 133mmSensitivity: 200hvFrequency Response Range: 20 - 20000Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Car bluetooth-compatible Amplifier1 x Remote Control1 x US Type Power Line1 x DC Power Line1 x Speaker Connecting Line