Add it up

Two anthropomorphic fish stand side by side underwater, the blue fish on the left with a smug expression and the yellow fish on the right looking concerned. A thought bubble appears above the blue fish, first showing a pair of wired earbuds, then a pair of scissors, and finally a pair of wireless earbuds, illustrating a mental equation where the wired earbuds and scissors combine to create the wireless ones, causing the yellow fish to react with shock.