Both Boom 2 and Flare 2 speaker are support Partycast function, you can refer to the following steps to pair both speakers at the same time:

1. Turn on Boom 2 and connect it to your phone.

2. Turn on the secondary speaker, ensuring it is not connected to the phone.

3. Press the PartyCast button on the main speaker until you hear a prompt, then immediately press the PartyCast button twice quickly to revert to PartyCast 1.0.

4. Long press the Bluetooth button on the secondary speaker to enter PartyCast pairing mode. The Bluetooth indicator light will change from flashing blue to flashing white.

5. When the Bluetooth light on the secondary speaker turns solid white, PartyCast pairing is successful.

If you have additional questions, please contact us at service@soundcore.com for further assistance.