The DSC SCW457H IMPASSA Self-Contained 2-Way Wireless Security System is a fully integrated 64-zone wireless alarm system with built-in two-way voice communication and optional GSM cellular connectivity. It combines robust security features, easy device enrollment, and remote firmware updates to provide a reliable, user-friendly solution for residential or light commercial environments.

• Supports 64 wireless zones and up to 16 wireless keys without using a zone slot.

• Built-in two-way audio VOX and push-to-talk communication via phone line and cellular.

• Optional integrated HSPA (3G), LTE (US only), Internet, or dual-path communicator.

• 17 user access codes, 5 programmable function keys, and full 32-character programmable labels.

• False alarm reduction features, outdoor temperature display, and remote firmware upgrades.

• For more information visit Manufacturer's Website