That ping pong noise is driving me crazy!
Table sphere is a sport where you have a table and then you use a sphere on it. That's table tennis or ping pong. Makes sense, right? You use a ping pong ball and you play on a table.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own. Careful of たく's shortening.