The Portable Digital Keypad Safe from Barska is accessible using a user-defined three to eight-digit PIN code. This digital lock box features a lock out mode that deactivates the keypad to resist tampering. In addition to the keypad access, this portable lock box comes with a steel cable for temporarily securing the safe to a fixed position. The Digital Keypad Safe is powered by four AA batteries. In the event that the batteries are depleted, a secondary access lock that works independently of the keypad can open the safe using an included back-up key. Like others in Barska's Portable Lock Box series, this configuration has a travel-friendly form factor that can fit inside a backpack or duffle bag and also has a built-in carrying handle.