... Phone 1,USB 5V power 2,Dual channel audio amplifier circuit 3,Multi Colors Digital Mini Speaker With Candy Colors ... 5V power supply, E,Built-in dual channel audio amplifier circuit, F,3.5 stereo audio input interface headTechnical details ... ,FCCQualityComply with the standard Apply hardware detection, intelligent protection circuit.Packing, Shipping and Payment Package DetailsOptional as follow:1, ...