[5 x 3 x 3 Black01]

1, Brand: KHHYYLFJ brand is committed to creating a first-class professional brand service store. Our products adopt newly upgraded designs and special materials, allowing you to enjoy the design while using our products safely and with peace of mind;
2, Installation and unlocking: You only need a screwdriver to install it in a few minutes, which is suitable for both men and women. There will be no difficulty in screwing the screws or loosening the lock. The durable and comfortable unlocking methods include fingerprint, code, Fob, smartphone, and key. The biometric fingerprint recognition technology can recognize your fingerprint in 0.3 seconds, and unlock your door in just 1 second, with reliable reading and no malfunctions;3, Advanced unlocking: Connect with Hey Google and Amazon Alexa gateways to lock/unlock the smart door lock anytime and anywhere, remotely set passwords, view real-time access logs, remotely generate passwords, and share them with your visitors. The set password will not be uploaded to the internet and will not be stolen, which is a safe and reliable solution for Airbnb short-term landlords, commercial rental property management, residential tenants, apartments, and company locks;4, Satisfaction guarantee: The TTlock APP software is permanently free to use, with no hidden fees or long-term costs. When used with 4 AA batteries, it can be used for at least 9 months, with low battery reminders and equipped with an emergency charging port to avoid emergency situations where the lock cannot be opened due to low battery;5, After-sales service: If you have any questions, please feel free to ask in the "customer Q&A" or contact us directly. If there are any defects or unsatisfactory aspects of the product, we will unconditionally replace or refund it.