Claimed to work when connected to 2 devices. You connect to two devices, but the benefit is minimal. I have a work phone and a private phone. One is an iPhone 6S and the other is an iPhone 6. When I'm listening to music on one and making calls on the other, the connection doesn't always stay up and then the headphones get mixed up. Other times when I'm not listening to music I'm trying to make a call and it gets disconnected as soon as the phone rings and then it tries to reconnect but doesn't because it's confused.
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