How do I put the Soundcore 2 into Bluetooth pairing mode?

Press the power button once to enter pairing mode, indicated by a flashing blue LED. To un-pair a connected device and re-enter pairing mode, press and hold the power button for 2 seconds. The speaker should be within 1 meter of the device you want to pair.

From the official Anker Soundcore 2 Portable Bluetooth Speaker manual, page 6

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