1. Model: M5 (black/silver)2. Battery type: 4 *AAA batteries (Note: not included in the package)3. Fingerprint type: semiconductor fingerprint4. Fingerprint: 20-100 pcs5. Applicable door thickness: 28-50mm6. Emergency power supply: USB charging port (Type C)7. Product material: aluminum profile + zinc alloy8. Unlocking method: APP, fingerprint, password, card swipe, mechanical key9. Tuya gateway or zigbee gateway can be added (gateway purchased separately)