Wireless systems link doors, windows and motion detectors to a main control box using radio transmission.

Wireless systems are also expensive.

Wireless systems have an advantage over wired systems in last mile applications in not requiring lines to be installed.

Wireless systems capable of tracking vehicles and people all over the planet are leaving businesses aglow with new possibilities, and some privacy advocates deeply concerned.

Wireless systems are more susceptible to interference from other devices and systems, which can compromise performance.

Wireless systems allow orders placed at drive through speakers to be taken by cashiers and cooks.

Wireless systems use radio frequencies that are designated by governments for unlicensed use.

Wireless systems are now the fastest growing portion of the alarm business.

Wireless systems are also popping up in colleges, businesses, airports and hotels.

Wireless systems offer high-speed Internet connections via radio frequencies.