Waterproof, conforms to IP67 Metal housing, anti-vandal Card type: 13.56MHz Mifare Card Add / Delete users by APP Generate the QR Code via TTLock APP Send E-key, Support Time Attendance Temporary Code (One-time/Period Code) Support checking Opening Record Multiple Access Modes: Smartphone, Face, Card, PIN Multiple language Bluetooth version, unlock without a network Bluetoo... https://www.secukey.com/product/access-control-qr-code-reader-v6-qr-ble-wifi.html