The speaker is a major component of a PC set up as it allows the user to hear and listen to audio emitted from a video or while gaming. In technical terms the speaker is a device that allows the transfer of energy from electrical waves that are sent by the computer/PC and transform it into sound pressure waves that allows the average human ear to hear it. Although they can be hooked up to any sound system they are most often work in pair with computers.
The sound produced by a speaker can vary depending on the level of fidelity in which the speaker has. the higher the fidelity is the better the quality of the sound reproduced by the speaker is. Most of the time the speaker connects to your PC via Bluetooth connection although there are other methods such as USB, audio jacks and or Wi-fi connection. Depending on the type of speaker they can come with a volume control panel which allows the user to control how loud or quite the speakers are.
Looking into affordability speakers could often range between $60 to $1,000 a recommended speaker under $100 would be the T100 which offers many options for how it can be connected to the PC and often comes with a wireless remote. The best budgeted one would be the Pebble Pro which is compact and is powered by USB and delivers good audio while also being slightly more affordable. While a recommended one for gaming would the Audio Engine A2+ which gives excellent audio performance. Feasibility and quality of a speaker is highly debated and so it is suggested that a user do his or her own research and decide what is best for his or her own preference.