Features 1Premium Aluminum Material: Crafted from excellent aluminum alloy, this smart electronic cabinet lock is rustproof, long lasting, and boasts a simple and elegant appearance. 2Accurate Reading: The smart digital password lock features a built in reader and contactless responder technology for precise readings, quick and sensitive responses. 3Low Voltage Alarm: Equipped with a 4 tone long beep low voltage alarm, this cabinet lock offers a safe door access control with a long lifespan for added security and convenience. 4Built in Li Battery: The digital touch keypad lock comes with a built in li battery and supports unlocking using a 5V emergency power supply connected to a for Android port. 5Wide Application: Ideal for cabinets, storage lockers, shoe cabinets, drawers, filing cabinets, and more, this coded lock is great for homes, offices, hotels, apartments, dormitories, and other locations. Specifications Item Type: Electronic Cabinet Lock Material: Aluminum Alloy Weight: Approx. 139.00g/4.9oz Battery: 150mAh Li Battery (Shipped with Built in Battery) Product Size: Approx. 37.5x46mm/1.48x1.81in Opening Diameter: Approx. 18mm/0.71in Package List 1 x Electronic Cabinet Lock 1 x USB Cable 1 x Accessory 2 x Screws 1 x Instruction Manual