Features:1. Two-color indicator lights and 12-key mechanical buttons make your operation more convenient.2. Both the user code and the management code support any combination of 4-10 digits, and the key amount is up to 10 million groups.3. The door locking mode is optional: automatic lock door and manual lock door.4. Low power consumption, 3 AAA battery power supply, the battery has a service life of more than one year, automatic prompt when the battery is low.5. The emergency power supply adopts Micro USB interface, which is convenient for use with mobile phone chargers or charging device.6. If the wrong password is input three times continuously, the keyboard will alarm.7. Suitable for wardrobes, drawers, shoe cabinets, office cabinets, newspaper boxes, metal cabinets, wooden cabinets, tool boxes, mailboxes, school lockers, etc.Specification:Condition: 100% Brand NewMaterial: ABS Electronic Lock Treatment: Fine SandingPower Supply: 3 x AAA batteries (Not Included)Voltage: Power: 4.5V, Low Voltage: 3.6V ± 0.2VCurrent: Quiescent Current: ≤20uA, Dynamic Current: 200mAWorking Temperature: 0-55°CWorking Humidity: 20%-80% RHLock Box Usage Time: > 20000 timesBattery Life: > 4000hElectronic Lock Diameter: Approx. 50.5mm / 2in Electronic Lock Width: Approx. 12.25mm / 0.5inLock Box Size: Approx. 57 x 84 x 23mm / 2.24 x 3.31 x 0.91inLock Catch Size: Approx. 73 x 24 x 12mm / 2.87 x 0.94 x 0.47inPackage List:1 x Electronic Code Lock1 x Lock Box1 x Lock Catch1 x Package of Screws1 x Connection Cable