1.8 INCH WOOFER, 40W, WOOFER MAGNET IS 70 MM, VOICE COIL 25 MM, TWEETER MAGNET IS 80 MM, VOICE COIL 25 MM.
2.USB/SD,FM,BT,REMOTE,WITH LIGHTS，BATTERY INSIDE 12V 2.6A, ONE WIRELESS HAND MICROPHONE

this item with 6 inch, 8 inch, 10 inch,12 inch and 15 inch, you can sell them in series.