Finding a Bluetooth-enabled hardware security key for iPhone and iPad is difficult. The Google Titan package is out of stock. I bought this product and Yubikey 5 NFC as a backup. Research and read. I've heard horror stories about Bluetooth pairing. There are many steps, but it turned out almost the first time. Very satisfied and very economical. Also works with Chromebook and laptop with Windows 10. I use a small USB-A to USB-C adapter for USB-C devices only.
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