Smart Fingerprint Door Knob Lock Three Unlocking Options App Control Bluetooth Smart Lock Aluminum Alloy and Zinc for iOS Devices USB Charging Port Mechanical Keys Included

[Long Battery Life] Operating on 4 batteries, this fingerprint ball door knob offers up to 12 months of battery life, features a low battery warning system, and includes a usb charging port for emergencies, with 2 mechanical keys as backup.
[Efficient Access Method] The smart fingerprint door knob offers three unlocking options, including fingerprint recognition, app control, and backup keys, ensuring convenient access tailored to your needs.
[Weatherproof Design] Constructed from weatherproof stainless steel, this door knob lock withstands various weather conditions, making it suitable for residential, apartment, or private space doors, combining security and accessibility seamlessly.
[Bluetooth Connectivity] Compatible with ios devices, the app allows bluetooth connection for easy management of the smart lock, customization of settings, viewing unlock logs, and managing up to 1,000 users efficiently.
[Easy Installation] Crafted from rugged aluminum alloy and zinc, this fingerprint door ball lock easily replaces standard door knobs without drilling, suitable for various door types, and accommodating most thicknesses.