1、Fingerprint Identification: Precise identification with a gentle touch, semiconductor fingerprint recognition, high performance chip anti theft, which is faster, more accurate and more sensitive. 2、Virtual Bit Password: There is no need to cover the tap panel to wake up the door lock, the unique password effectively prevents peeping, worry free entry, more convenient. 3、IC Key: The IC key adopts special encryption technology, which has a high degree of security, privacy, easy to carry, anti copying, and simple use for the elderly and children. 4、Key Unlock: Mechanical protection, hidden design, hidden USB emergency charging port and key hole design, it can be used normally without electricity, solving your worries. 5、Practical: Wired free installation, built in knob unlocks, the indoor knob unlocks to prevent the door from opening in case of emergency, after closing the door, the induction automatically locks. Item Type: Smart Fingerprint Door Lock Material: Metal Low Power Alarm: ≤4.8V Fingerprint Sensor: FPC semiconductorLock Battery Type: 4xAA alkaline battery (not included) Remote Control Battery Type: 240mAh Button Battery (built-in) 1 x Smart Fingerprint Door Lock Kit (3 Pcs) 2 x Silicone Lock Pad 1 x Lock Tongue 2 x IC Key 3 x Key 1 x Protective Case 1 x Accessory Package 1 x Manual