The limitation of 3400 credits of design components has yet to interfere with the designing of the toy. The special components that will be used are as follows: a speaker that enables the "student" to receive vocal feedback from the XyloMaster, pressure sensors that let the XyloMaster know what keys are being struck, a segment LCD screen that shows the score of the music, infrared emitters on the keys that light up to help distinguish which keys play which notes, a computational processor that interprets the various notes the "student" plays and gives feedback accordingly, a PC link-up to download music, and a memory storage that remembers the progress of the lessons for each user if there are multiple users. Counting the costs of the pressure sensors and infrared emitters each nine times for the nine keys that the toy will be composed of, the total cost comes out to be 3000 credits. The software needed to read the downloaded music and configure the notes into scores of music costs $10.

	Item	Cost
	Speaker	200
	Pressure Sensors	100*9
	Segment LCD Screen	100
	Infrared Emitters	50*9
	Computational Processor	500
	PC Link-up	350
	Memory Storage	500
	Software	$10
	Total	3000 credits +$10