Supports reading MP3 from TF card and U disk. Supports adjustment of treble, bass, and master volume. Dual microphone input with adjustable reverb, built-in Bluetooth and FM radio. o input allows connection to computer, phone, or CD player. Plug Type: EU Plug, suitable for use in Indonesia, Germany, France, Italy, and other regions with compatible outlets. Voltage: 220V Size: 17.5 x 8 cm Material: Iron Color: As shown in picture Package Contents: 1 x Amplifier board 1 x Speaker wire 1 x Cord 1 x DC line 1 x Remote control Only the items listed above are included; other products are not included. Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.