I had this thought just now at the gym. I noticed multiple people, myself included, using wireless earbuds during our workouts – specifically AirPods.
My question is, if multiple people are using AirPods that work on the same frequency/signal, how come our music doesn’t all interfere with each other? How do each of our phones/AirPods differentiate from the others a few feet away from me?
In: Engineering
Modern Bluetooth uses fast frequency hopping. Every few milliseconds the frequency is changed to one of the 79 possible channels. So 80 people in an 25ft radius using Bluetooth should have little to no interference.
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