So first you should look into the features that are offered for these devices. You want to have a noise-canceling mic, but you also need to know if it has other features like dynamic range compression, noise suppression, echo cancellation, and more. One of the most important factors is the quality of the design so make sure you are looking for one that offers good sound quality with durability. If possible see if they have any latest models because these may offer better performance than what was available before. Reading customer reviews can be really helpful too. Find out about people's experiences with different brands and find out if theirs does what yours does or not! Sometimes there are certain features that might be more popular among customers depending on their needs.