Can only be paired to one device's Bluetooth at a time, and I don't mean sharing between devices- I mean if I used it on my laptop the last time, but want to use on my phone this time, I have to unpair from laptop and pair with my phone EVERY SINGLE TIME. I have to disconnect/unpair from all devices each time, and pair with the one I currently want to use them through. It's a time consuming and unnecessary hassle. Yet, with my HearproTek, Beats, and even random $10-15 knockoff buds I've bought it's never a problem to turn headphones on and choose them from the device I want them paired to; no matter how many other devices they've been paired to in the past and show up on for pairing as an option when they're turned on. You can get headphones that are easier and more user friendly to pair and connect to for the same price range or less, so do not settle for these!