Vaultek Nano Key 2.0 Biometric Safe Key

Features: Compatible with Bluetooth 2.0 safes only. Instant access with one simple touch. Mount anywhere with the included bracket and mounting tape. Biometric scanner can store up to 20 fingerprints for secure access, and features a range up to 20 feet. Built in rechargeable battery provides 3 months of standby time, and can be recharged in 2.5 hours. Specifications: External Dimensions: 1.8" Diameter x 8" Tall Battery Life: 3 Months on Single Charge Range: 20 Feet (varies per model) Biometric Storage Capacity: 20 Unique Fingerprints Included Accessories: Adhesive Backed Mounting Bracket and (1) Micro-USB Charging Cable