Description This external emergency battery supply case is designed to provide reliable backup power for electronic locks and safes. Its compact and durable design ensures portability and long-lasting performance. Ideal for emergencies, it offers a seamless solution to keep your devices operational when primary power sources fail. Features -Color:Blue -Material:Plastic, Metal -Size:22.50X6.20X1.80cm/8.84X2.44X0.71in -Versatile compatibility: designed to fit various safe locks, this external emergency battery box ensures reliable power supply during critical situations -Long lasting power: equipped with a high capacity battery, it keeps extended operation even during prolonged power outages -Rapid charging technology: features fast charging capabilities to minimize downtime and enhance emergency responsiveness -Compact and portable: its sleek design makes it easy to carry and install, ideal for home, office, or travel use -Dual plug options: comes with universal 2.5 mm and 3.5 mm connectors for seamless compatibility with multiple devicesPackage list: 1pc External Power Supply Box