Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to use headphones on an iphone 7 [title] Locate your iphone's lightning port. [step] While the 3.5 millimeter headphone jack is gone, the traditional charging port--also known as the lighting port--is still at the bottom of your phone. You'll plug your lightning headphones cable into this slot.

Ending1: [title] Plug your headphones into the lightning port. [step] These should fit into the lightning port the same way your iphone 5 or 6 charger does. Ending2: [title] Insert the apple id box into the keyhole of the charging port. [step] You'll need this id space to plug your headphones into the neck of your iphone. Ending3: Set the cable end to a meter stick. Make sure the meter stick is pointed north. Ending4: [substeps] To obtain the lightning plugging port, first open the lotus screen on your iphone. Look for the box where the volume buttons are.

Answer format: ending1/ending2/ending3/ending4