Using selfie sticks
Selfie stick says “be sure volume key of iPhone can take pictures.” Also Says “may have to set volume key to take pictures.” Also says “to use selfie stick use the headphone cable to touch off the photo button. “ QUESTION: what is volume key and why are headphone cables needed to take photo? Also can I use same selfie stick fore iPhone 8 as a 10 XR?
iPhone XR