This Jar lamp assembly kit is a simple entry in the basic knowledge of the soldering on circuit boards and components. It is very well suited for guided lotkurse in schools and workshops. It can also be very well in holiday programs, and other events in country school homes around the topic of soldering.Built in an active loudspeaker with 5 watt mono amplifier board.Part is in addition to the amplifier board, which must be fitted and soldered, a complete loudspeaker box. This, the user must also self-assemble. Due to lasered precisely fitting wood components used, the box without further wood processing simply installed and can be glued.The active box can be used via the headphone jack with your Smartphone or MP3 player to be connected and thus makes a comfortable speakers from the headphone output.The power is supplied via a 9 V block battery. This is included in the set.This text is machine translated.