Everything you need to build your own wireless speaker just simply put the parts together and insert 3 x aa batteries not included to play wirelessly or you can connect it to the micro usb cable included the speaker is compatible with most bluetooth devices and can be used wirelessly up to 10 meters compatible with most bluetooth devices wireless range 10 meters speaker output power 2 x 3w assembled dimensions 26 x 13 x 6 cm requires 3 x aa batteries not included micro usb cable included f