钥匙帮 QRKey

1 support QR code lock mobile phone to open the door, generate a smart door card with one key, no trouble of forgetting to bring the key.2 to replace the traditional keys, can be used as hotel occupancy, rental housing, office leasing and other key management tools.3 It can be used together with the "QR Master APP" to accept the QR code keys sent by the hotel and check in easily.