✔ Product characteristics:1. Low -voltage alarm. When the battery is insufficient, each time the safe is turned on, it will ring three times. The LED indicator lights flickered three times, indicating that the voltage is insufficient, reminding the user to change the battery2. A set of passwords is a combination of a series of keys on the keyboard. One password refers3. Ultra -low power consumption, 4 AA alkaline batteries, the service life is up to 12 months4. The spare key is not controlled by the electronic closing system, so if there is no electricity, you can use the spare key to turn on the device and change the battery✔ Product information:User capacity: group 4-6-bit passwordPassword type: electronic key passwordWeight: 3.3kg (kg)Unlock method: fingerprint password/backup key/keyInstallation: bedside table, computer table, wall, wardrobe, etc.Size: 41*25*13cmSurface treatment: sprayStorage type: Online storageType: fingerprint safe✔ Packaging list:Portable gun safe*1Backback key*2Install hardware kit*1Manual (English)*1