The Smart Padlock offers ultimate security with features such as double waterproofing, AI self-learning, and rapid recognition technology. With Bluetooth, NFC, and virtual password support, you can easily unlock and share access using the Tuya app. Equipped with semiconductor sensors, 50 fingerprint and 200 keycard volume, and long standby time, this padlock ensures maximum protection and convenience. Feature Double Waterproof Bluetooth Support Fingerprint Virtual Password Tuya APP NFC Support PIN Code Share Unlock Keycard AI Self Learning Rapid Recognition Semiconductor Sensors Unlock Logs Long Standby Time Low Power Warning 50 Fingerprint Volume 200 Keycard Volume Packaging: 1 x SP900 Smart Padlock 1 x Packaging box 1 x User manual 1 x Keycard 1 x data cable