The coiled form makes it somewhat retractable. If you have the phone earpiece on the phone itself, the coil makes for basically a 6 inch (15cm) curly cord, but you can still bring the phone up to maybe 6 times the length, nearly 1.1 yards (1m).
It's common for signal cables that don't carry much power.
What are you talking about? Assists are absolutely a great feeling when playing basketball. And, for that matter, so are wide-open shots you score in plays made possible by teammates' contribution: good passing, pick setting, etc.
And I've never played at a level where alley oops are possible, but I kinda wish that I could've.