very good devices works great and very smart. I recommend it

The device works very well.

it works very well it’s tiny though

1. Put the battery in before installation and touch it from setting up after connecting.
2. Install the app by taking QR of the manual. Press down blue!!
If you press it off on top of it. The app is partially patched in Korean.
3. Turn on the mobile phone Bluetooth
4. Register in the app. Select either mail or phone number.
5. If the log-in is successfully connected, the administrator can both Register, non-registration, and card registration fingerprint registration.
6. Cards can be registered one by one, not by line registration. Samsung cards are also available.
7. Open closed voice comes only in English, and volume adjustment can also be turned off.
Even if I update, I don’t have Korean

Arrived as described, although a little bigger than expected.

Setup easy and working well so far