Neither Sena nor Revain make it clear, but as long as the GP10 is on, it's the *only* Bluetooth device that will recognize your Sena headset. No GPS, no phone, no music - just a connection to the camera. There are numerous posts on the Sena support forums complaining about this, but there is no solution. If you want to use another Bluetooth device, don't buy the GP10.
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