I ordered a couple and had to return. I was just going to sync them to phones with the companion App. Scanning the qr code on the instructions will lead you to the app but it was only in Chinese so it was of no use.
I ordered a couple and had to return. I was just going to sync them to phones with the companion App. Scanning the qr code on the instructions will lead you to the app but it was only in Chinese so it was of no use.