Turn the How do I reject calls on the PURE off if it is already on. From off press and hold the play button until the light starts flashing rapidly and then let go of the play button. Then on your device go to the Bluetooth menu and select the How do I reject calls on the PURE. To pair another device repeat this process. Remember the PURE will try to connect to the last device it was connected to. To connect to another paired device you will need to manually connect via the Bluetooth menu on that device.