The external emergency power supply box is designed to keep your electronic locks and safe boxes operational during power interruptions. Its versatile design includes multiple DC power , allowing you to connect various devices simultaneously. The robust construction ensures durability, while the user-friendly interface makes it easy to use in any situation. Features -Color:Black -Material:Plastic -Size:27.00X6.50X1.80cm/10.61X2.55X0.71in -Multipurpose functionality: the safe box emergency charger external power box offers a versatile solution for different requirements. - : featuring cuttingedge antitheft technology, it provides robust protection for your valuable items. -Easy portability: its compact and lightweight design ensures and installation in various environments. -Extended battery life: the backup battery box delivers power, ensuring your devices remain operational. -Universal compatibility: compatible with a wide range of safe boxes and door locks, it facilitates easy replacements and upgrades. Package list: 1 Box