The Eyecon® Box has the latest in smart lock technology. Send your guests a unique Picture Key to open lockbox. Manage from anywhere, using any device — all without downloading a new app. Perfect for the sharing community, whether you have a home for sale, vacation rental, bike share, or need to let the dog walker in. Features Large and durable metal casing Lockbox can be opened with mobile device, or keypad Open via mobile device using a Picture key®, numerical code or both Create custom access by date and time or duration Enable Wi-Fi and remotely program and monitor lockbox via Ocular platform Retrievable access log Weather resistant No monthly access fee Requirements No additional hardware required Lockbox must be connected to Wi-Fi (802.11g / 2.4GHz) to program and monitor remotely Lockbox uses 4 Lithium AA batteries Parts Included Lockbox 4 AA batteries Battery Backup Quick-Start Guide Optional Accessories Key Reel Weather Case Maximum Exterior DimensionHeight: 5-1/16"Width: 3-11/32"Depth: 2-17/32"Minimum Inner Vault Size3-3/8" (H) x 2-15/16" (W) x 3/4" (D)