Product Features: This product is a new protection of automobile property against burglars. This design finally finds a way to deal with the distress that many owners are afraid to put valuables in the car or car boot. This product is made of stretch-formed steel sheet and quality combination lock and with excellent appearance. It can be fixed in any space of the automobile. It is very efficient and safe for all kinds of automobile models. It can contain valuables such as cameras, video cameras, laptop computers, briefcases, cash, jewelry, wallets, bank cards, ID cards, important documents, etc.. You will never worry about the valuables when you leave away so that to focus on your works and enjoy the entertainment. Features of Product: Model STX-004 Net Weight 6kg Gross Weight 7kg Size 420Wx320Dx135H, mm Thickness of steel 1.2mm Diameter of steel cable 5mm * Electronic lock is available only with four 5# dry cells installed in the box after opening it. Set the Password: 3-6 digits passwords can be set according to users' requirements. The factory's original password is 168#. Press "0" "0" "#" to change the password. Step 1----Enter original password, then end with "#"; Step 2----Enter new password with "#", and repeat the new password, then press "#". At this moment, a continuous tone indicates that password reset successfully. Please keep the new password into record. Forget the Password: Then use the emergency key to open the car safe cover, then press the reset hole (see structure charts) with a plastic stick. The password will change to the factory's original password (168#) automatically after the buzzer issues with a "beep". You can reset the password, please see the above instruction. Indicator light turns to red: Normally the dry cells can work one year. If the light turns to red, it means dry cells are under-voltage, please replace them.Sheyang Sinopioneer M&E Co., Ltd.