Unlock mode: Fingerprint / Password / Tuya APP ( bluetooth ) / Mechanical Key Fingerprint Capacity: 120 Password capacity : 150 Fingerprint read: semiconductor sensor Read time: less than equal 0.3S Working power: 4x AAA battery ( Not included ) Operating temperature: -20 to 60Celsius Suit for the door thickness about 35-55mm With USB charge port for emergency Application : Wooden Door / Metal Door Colour:black Material:Zinc alloy type: A/B/C/D Package Contents: 1 x Electronic smart lock Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Tuya APP Bluetooth Wifi Smart Door Lock Biometric Fingerprint Lock Password Key Unlock Electronic Digital Lock Unlock mode: Fingerprint / Password / Tuya APP ( bluetooth ) / Mechanical Key Fingerprint Capacity: 120 Password capacity : 150 Fingerprint read: semiconductor sensor Read time: less than equal 0.3S Working power: 4x AAA battery ( Not included ) Operating temperature: -20 to 60Celsius Suit for the door thickness about 35-55mm With USB charge port for emergency Application : Wooden Door / Metal Door Colour:black Material:Zinc alloy type: A/B/C/D Package Contents: 1 x Electronic smart lock Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.