This could also be done through a wiredsystem, but wireless technology offers lower installation costs and greater flexibility.
有线系统当然也可以做到这一点，但无线技术所需的安装费用更低，也更加灵活。
2
The range consists of three different types of regulation systems: a wireless system based on radio communication technology, a hard-wiredsystem, and a self-acting system.
主要的三种标准的产品包括：基于无线控制技术的无线控制系统、线电缆系统以及自立式系统。
3
Each of the homes has a security system and is wired for cable television.