Power Supply Mode:5V DC Power Supply ( Phone Charger, Power Bank, etc.)Audio Input:bluetooth or Audio Cable Two Input MethodsSwitch Terminal:Power Switch, bluetooth On Or Off, Up And Down Music FunctionAuxiliary Function:Spectrum Function (LED Flashing)Module:-009Delivery :Delivery In Bulk (Need To Assemble)Case:Acrylic CaseWeight:206G (With Acrylic Shell)Power Amplifier Circuit:HT6872 Audio AmplifierSpeaker:2 inch 3Wx1Colour:As ShownMaterial:PlasticSize:70x70x83mmPackage Contents:1 * DIY Bluetooth Speaker KitOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.