I do have to participate in calls way more often than I care to admit, and making or taking calls is not my favorite thing - apologies to anyone reading this that has ever had to talk to me on the phone; it's not you, it's me.
Small and compact; Great for conference calls involving smaller groups of people around a table (up to six); omnidirectional microphone so everyone around the 710 can participate; Can be linked to a second Jabra Speak 710 for larger conference calls; Makes a great Hi Fi laptop, tablet, or phone...
If you are buying it solely to be a portable speaker; there are less expensive speakers available