Item Type: Smart Fingerprint Door Lock Material: Metal Low Power Alarm: 4.8V Fingerprint Sensor: FPC semiconductor Lock Battery Type: 4xAA alkaline battery (not included) Remote Control Battery Type: 240mAh Button Battery (built-in)1Fingerprint Identification: Precise identification with a gentle touch, semiconductor fingerprint recognition, high performance chip anti theft, which is faster, more accurate and more sensitive. 2Virtual 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. 3IC 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. 4Key Unlock: Mechanical protection, hidden design, hidden USB emergency charging port and key hole design, it can be used normally without electricity, solving your worries. 5Practical: 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.1 x SmartFingerprintDoorLock Kit (3 Pcs) 2 xSilicone Lock Pad 1 x Lock Tongue 2 x IC Key 3 x Key 1 xProtective Case 1 xAccessory Package 1 x Manual