Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Security System for wired and wireless networks!!!

This high tech, simple to use firewall works perfectly for my network security needs. It cannot be hacked into, and stopped all third party pop-ups!! It monitors all of your incoming and outgoing computer communications. The AlphaShield 10 Mbps adds extra firewall protection not provided by my modem or router. It's sturdy--I've been using it for two years. Great product.