This is the new Samsung Smart Tag
Only black available as a single pack
You can get 20% off the 4 pack (2 black, 2 white $127.20 = $31.80 each) but they don't come with free case
https://www.samsung.com/nz/mobile-accessories/galaxy-smartta…
Don't know how good they are but had an expiring voucher to use up
Cheers, I'm not fussed about the cases so bought a 4 pack.