Item Type: Fingerprint Smart Lock Material: Zinc Alloy Fingerprint Collector: Semiconductor Fingerprint Head Fingerprint Capacity: 99 Pieces Password Capacity: 99 Groups Card Capacity: 99 Cards Power Supply: 4 x AAA Alkaline Batteries (Not Included) Low Voltage Alarm: 4.8V Bluetooth Standard: Bluetooth 4.1BLE Quiescent Current: 20 Microampere Dynamic Current: 150mA Size of Single Tongue Lock: Approx. 60mm / 2.4in, 70mm / 2.8in, Adjustable Center Distance Package List 1 x Front Panel 1 x Back Panel 2 x Key 2 x Access Card 1 x Single Tongue Lock 1 x Lock Cylinder 1 x Lock Box 1 x Lock 1 x Install Accessory Kit 1 x Positioning Paper 2 x Manual 1Supports many unlocking methods: phone Bluetooth APP unlocking, fingerprint unlocking, password unlocking, mechanical key unlocking, and card unlocking, which can meet all your unlocking needs. 2This fingerprint smart lock supports mechanical key unlocking function, at the same time has automatic sleep low power consumption mode, low electric quantity's indication. 3Card unlocking holds highfrequency encryption card, avoid degaussing, safe encryption, compact and it is easy to carry. The card can support up to 99 users to share experience, allowing you to manage life happily. 4The password design adopts a false password design to prevent peeping. The false password is intended to enter the false password before the valid password to effectively prevent others from peeping. 5Generate and share timelimited passwords to share with your friends. The simple design style is coupled with the ethereal tone of the electronic digital touch buttons, allowing you to enjoy a comfortable life. 6The surface of our product is designed with zinc alloy, so that the lock is durable and can be used for a long time, which can save users the trouble of frequently changing locks because of disrepair. 7The unlocking times exceed 300,000 times, the service life is 300,000 times, and the fingerprint storage capacity is 99 (pcs). If users connect with the phone APP, you can query unlocking records on your phones.