How do I pair two PartyBox 100 speakers together in TWS mode?

Press and hold the Bluetooth button on both speakers simultaneously for 5 seconds; you will hear a tone indicating the speakers are in pairing mode, and another tone once the TWS connection is established. To exit TWS mode, press and hold the Bluetooth button for 5 seconds on either speaker or power off the speaker. The TWS range is approximately 10 m (33 ft). (Page 6)