Talk:1707: xkcd Phone 4
The current explanation seems to assume a constant current draw of 1A without explicitly stating it. 18.104.22.168 14:04, 15 July 2016 (UTC)
The 12 headphone jacks is probably referring to the rumor that the iPhone 7 may not have a headphone jack. 22.214.171.124 14:58, 15 July 2016 (UTC)
Fun fact: the Walkman II (the most popular variant) had 2 headphone jacks, so that two people could listen to music at the same time, but the second jack was removed from later designs. This has a few more than that, perhaps there is one for each voice assistant to make it "usable".