If you use your computer system for home study or work, there's no question that having a wireless mouse and keyboard can greatly benefit your computing experience. However, it's important that you know exactly what you're buying before you part with any of your money.
As of today, there are currently three types of wireless technologies that you'll find in present-day mouse and keyboards, these are radio frequency, infrared and Bluetooth.
The transmission range from infrared mousses and keyboards is a mere two meters, but this is the cheapest option, making it ideal for the entry-level home user who may require wireless technology with only two meters of range.
Bluetooth wireless technology, on the other hand, has a range of around ten meters, making it ideal for office use.
With a Bluetooth device, you'd be able to access a project using your mouse and keyboard within its 10-meter range as you present to customers or other employees your multimedia slideshow.
However, the main drawback of Bluetooth technology is that it's fairly expensive. Radiofrequency mouses, for example, operate similarly to your wired USB mouse, with an excellent cost to quality ratio; I'd have to recommend this option over the others.
Many of the wireless devices that you'll buy for your computer come with either rechargeable or disposable batteries. If you happen to be someone who's on the computer for great periods of time, doing work or playing a computer game, it's recommended that you opt for wireless devices with rechargeable batteries, that way you can guarantee more usage time for the price.