Take full control of your keys with the free TTLock App - generate virtual passwords (6-9 digits) and share time-limited access permissions with family, tenants, or cleaners. Engineered for resilience, the zinc alloy body with IP65 certification resists water, dust, and extreme temperatures (-20°C to 55°C). Its dedicated wall-mount design ensures secure installation both indoors and outdoors, providing reliable performance in rain, snow, and harsh environments. Powered by 3 x AAA batteries (not included), the lock box sends real-time low-battery alerts via the app. If power runs out, use a USB-C power bank for instant charging to gain immediate access. The reinforced zinc alloy cover provides protection against tampering and impacts, while the spacious interior securely holds 5 keys, 3 access cards, and 1 car key fob. Its dustproof and anti-pry design helps keep valuables safe in any setting. Designed for homeowners, hosts, and realtors, the app allows you to create temporary access codes with specific time limits. Simplify short-term rentals and property management with efficient keyless access. Color: As Shown Material: Zinc Alloy + ABS Plastic Package Contents: 1 * Lock Box for Keys with Code Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.