GunVault MicroVault Biometric truly sets the standard for pistol gun safes in the industries. Security and reliability are priorities when you need a Gunvault product. That's why Gunvault safes are the one you want. Gunvault's MicroVault Biometric scanners have lightning-fast quick access, day or night. Improved high strength lock mechanism and precise fittings make it impossible to break into by prying by hand tools. Powered by batteries for easy access, and portability. The MVB500 MicroVault Biometric uses fingerprint recognition, to access the safe contents. A high-performance algorithm is used to achieve speedy recognition of enrolled fingerprints. At the same time has a very low False Reject rate (FRR) for a given False Accept Rate (FAR). self-learning algorithm of the GunVault Bio adds new minutiae to the fingerprint templates each time a user touches the finger print scanner, which decreases the likelihood of FRR,updates slight changes that might happen over time to an enrolled fingerprint,as well as to help distinguish variations. MVB500 will handle up to 15 fingerprint templates and come with a standard 4ft cable that allows you to attach it to a fixed object making it good for home or travel what ever might be the need. Specifications: - Weight: 4 lbs - External Dimensions (W x H x D): 11" x 8 1/2" x 2 1/4" - Internal Dimesions (Wx H x D): 10 3/4" x 6 1/2" x 2" - # of User-Selectable Access Codes: Over 12 Million - Runs on 9 Volt Battery(Not Included) -, - Mountable Shipping Dimensions Weight: 5.3 pounds. Dimensional Weight: 2.03 pounds. Dimensions: 8.5" (W) x 3.5" (H) x 11.5" (D)