The Jabra Classic Earset for Samsung phones does not work well with Sprint's Voice Command option. When using the earset and attempting to use Voice Command, I have to shout in order to be heard in a quiet room. Even then some of the words are not picked up for Voice Command dialing. When I use the Jabra Earboom, Voice Command is able to pick up all of my words although their may be background noise and dial the correct number.