✅ 5-in-1 Unlock Methods, Ultimate ConvenienceThis smart door lock supports 5 unlocking ways: fingerprint, passcode, mobile APP, IC card, spare mechanical key. No more worrying about losing or forgetting keys, perfect for daily home use, hotel rooms, Airbnb rentals and office spaces. The anti-peeping passcode function allows you to input random digits before/after the real password to prevent peeking, ensuring higher security.✅ AI Fast Fingerprint Recognition, 0.2s UnlockEquipped with an AI self-learning fingerprint reader, this lock features 0.2s ultra-fast identification, 99.9% recognition rate and 360° full-angle fingerprint capture. The 125% enlarged sensor improves accuracy even for wet/dry fingers, making it friendly for kids, elders and frequent users. It can store up to 3000 passcodes, ideal for managing access for family, guests or tenants.✅ 12-Month Long Standby & Dual Emergency UnlockAdopting low-power consumption design, the lock only needs 4 AAA batteries (not included) to achieve 12 months of long standby time, reducing frequent battery replacement. It also comes with dual emergency solutions: Type-C emergency power supply via power bank for battery exhaustion, and mechanical spare key for ultimate backup, never get locked out.✅ Easy DIY Installation & Wide CompatibilityNo professional technician required! This smart lock supports easy DIY installation with detailed instructions. It is compatible with left/right-handed doors, door thickness from 30mm to 55mm, backset of 60mm/70mm, and hole diameter from 47mm to 60mm, fitting most standard wooden doors, bedroom doors, hotel doors and apartment doors.✅ Durable & Secure, Long-Term Use GuaranteeThe lock has passed strict reliability tests: 100,000 times usage test, 144-hour salt spray & humidity test, 3000N appearance pressure resistance test, ensuring long-term durability and stable performance in various environments. It is a perfect security solution for home, hotel, Airbnb and rental property management.✅ UNLOCK WITH TTLOCK APP: You can use mobile phone to unlock, or you can set a temporary password and share it with friends, visitors or housekeepers. This door lock is very suitable for families, hotels, schools and garages. Support ios and android devices.