The Loudspeaker's size is 2x2 squares.
A Loudspeaker is a relic of the past, once used to play music.
The option to give the discs for this item only comes up after completing Mission: Panbat Infestation.
The Loudspeaker and the Boombox can be taken simultaneously by providing 8 Data Disks altogether. However, if only the Loudspeaker is taken, the other diagram is given at the end of the year through the mail.
The Loudspeaker can also be donated to the Museum as a Medium Assembled Item. When donated, it gives:
9 Copper Plate
2 Simple Circuits
2 Copper Coil
4 Hardwood Plank