After Years of Development and Testing,Jabra Corporation Unveiled the Jabra

After years of development and testing,Jabra Corporation unveiled the Jabra 1000 earbud phone.The entire device fits in your ear.It resembles those tiny in-ear speakers that let you listen to an iPod in private-except that Jabra's unit is a transmitter as well.It picks up your voice by amplifying sound vibrations in your bones.Therefore,there's no microphone boom to jut out in front of your face.Because the bone vibrations must be amplified,a special chip in the part of the system that connects to the base of your phone uses noise-cancellation technology to screen out background sounds.This anti-noise chip generates a mirror image of outside noises,and the colliding sound waves erase each other.The main electronics package-about the size of a deck of cards-also monitors the quality of the phone line and automatically raises the volume of voice transmissions when the connection is weak.This tech-talk isn't cheap: the earbud phone lists for $329.
-Refer to Jabra Corporation.The Jabra 1000 is superior to existing hands-free telephones,especially with its small size and single part.However,consumers may think its advantages over current hands-free phones may not be worth the additional cost.Thus,what might affect adoption?

A) the product's compatibility
B) the product's relative advantage
C) the product's observability
D) the product's trialability