Once you have decided that an external microphone is the next step you need to take to improve your Vlogs or similar projects, it helps to have a basic understanding of the available technology and common jargon.
The first consideration when purchasing an external microphone is input type. Pro-level Video Cameras will often feature XLR inputs which are compatible with suitably high-end Microphone devices. More common is the 3.5mm jack that can be found on certain DSLR or Mirrorless cameras.
If you are looking to improve the sound recording abilities of your smartphone, there are many TRRS compatible microphones on the market which are generally very portable, while if you are recording straight to your computer keep an eye out for plug and play USB models.
No matter what type of microphone you purchase, the way that it captures sound will place it into one of two camps, dynamic or condenser microphones. As a general rule, dynamic microphones are better suited to recording louder sounds, such as live music. Condenser microphones are more sensitive and often pick up more detail, rendering them more suitable to a studio environment.