Features: [2 Unlocking Ways] Smart key box supports fingerprint unlocking/ APP unlocking for more convenient use. [Fingerprint Unlocking] Large capacity of 100 sets of fingerprint (2 admins included), advanced fingerprint identification chip, 0.5 second fast response. [APP Unlocking] Controlled by "OKLOK+" APP in your smartphone: BT unlocking, remote authorization unlocking (permanent/ periodic/ temporary), check unlocking records in APP anytime and anywhere. [Key Security] Alloy steel key storage box, great durability ensures it won't be opened forcedly. It can store keys, cards and other small items for safe and convenient access. [Rechargeable Design] Long standby time when full charged, no need to charge frequently. Low battery prompt can remind you to charge it in time. [Convenient & Practical] No need to carry the keys when going travelling or business trip, avoiding the risk of key loss. Note: 1. Big keys may not suitable for this product, to avoid this, please read the size before purchase. 2. Smart key lock box is not waterproof, please install it indoors. Specifications: Material: Alloy Steel + Electronic Components Fingerprint Capacity: 100 Sets (2 Administrators) Response Time: 0.5s FRR: <1% FAR: <0.002% APP: OKLOK+ Battery: 1 * 3.7V 150mAh Lithium Battery Working Environment: 20℃~70℃, 40%RH~85%RH (No Condensation) Storage Environment: -40℃~85℃, <85%RH (No Condensation) Item Size: 115 * 95 * 40mm / 4.5 * 3.7 * 1.6in Item Weight: 440g / 15.5oz Package Weight: 542g / 19.12oz Package Size: 19.2 * 15 * 5.5cm / 7.6 * 5.9 * 2.2in Packing List: 1 * Smart Key Box 1 * USB Cable