The Aqara Smart Lock U400, equipped with UWB (Ultra-Wideband) unlocking technology, provides a practical and convenient unlocking experience for users with UWB-enabled iPhone or Apple Watch. It offers multiple entry methods, including fingerprint, NFC, pass code and more. It also integrates with Apple home keys and is Matter-compatible, ensuring broad interoperability across various smart home ecosystems, including Apple Home. Hands-Free Unlock with Apple home key Matter over Thread Rechargeable Li-ion battery IP65 Rated and BHMA certified Advanced fingerprint reader Auto Lock Assurance Smart Lock U400 2 rechargeable batteries 2 keys Accessories kit Bolt & Screw kit Mounting plate Installation diagram User manual Input Type: USB Cable type: Dock to USB Cable Height: 17.8 cm / 7 in. Length: 10.7 cm / 4.2 in. Width: 967 g / 34 oz. (without battery), 1140 g / 40 oz. (with battery) Cable Length: 10 cm / 3.9 in. Other Features: Batteries Required, Bluetooth, Charging, HomeKit Compatible, Thread, Waterproof, Wireless Internet Access: Some features require internet access Connections: Bluetooth, Matter over Thread, Wireless Bluetooth Compatibility: Bluetooth 5.0 Memory Cards: MicroSDHC Power Source: Battery Batteries: Rechargeable lithium-ion Battery life: 7 months Charge Time: 6 hours Stand By Time: 8 months Operating System: Minimum required iOS 18.5, watchOS 11.5 Mfr. Part Number: AD051USG01 UPC or EAN No.: 6975833358564 Note: Products sold through this website that do not bear the Apple brand name are serviced and supported exclusively by their manufacturers in accordance with terms and conditions packaged with the products. Apple’s Limited Warranty does not apply to products that are not Apple branded, even if packaged or sold with Apple products. Please contact the manufacturer directly for technical support and customer service. Warranty: Two years