Check History Records: The open and close history is displayed in the app's history records for real-time monitoring of your property security. Requirements for Installation: The lock body thickness should not exceed 28mm to ensure proper IC card sensing and smooth unlocking. Reliable Fixation: Adhesive stickers and screws provide secure attachment between the lock body and buckle, ensuring stable and safe use. High Strength Material: Durable construction helps safeguard your property. Ultra-long Battery Life: Operates for over one year on battery power, reducing the need for frequent replacements and minimizing maintenance effort. Smart Cabinet Door Lock Unlock with IC Card Unlock with NFC Wide Range of Applicable Scenes Remote Unlock via App Supported Unlocking Methods: Mobile Phone Bluetooth, IC Card Number of Users Supported: Up to 250 card users Local Management Function: Supported Compatible App: Available for download Power Supply: 4x AAA alkaline batteries (not included) Working Current: Less than 50mA Working Temperature: -20°C to 60°C Relative Humidity: 20% to 85% (non-condensing) Antistatic Ability (ESD): Contact discharge 8KV, non-contact discharge 15KV Recommended Use Scenarios: Wardrobe, bedside table, shoe cabinet, drawer, etc. Notice: 1. 4x AAA batteries are not included; please purchase separately. 2. When the battery is depleted, the lock will remain in the open state; replace the battery promptly. Note: A Bluetooth gateway is required (sold separately). Color: Black Material: Plastic + Metal Package Contents: 1 x Bluetooth Lock Note: Light reflection and display differences may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3 cm.