I ordered this the other day out of desperation after DD got hysterical in the car once again. She still has her moments of getting crabby when she is tired and she'll cry a little, but when she's not tired she is absolutely fine and she has fallen asleep twice in her car seat with this on it.
It has 4 different sounds - one is a heartbeat and that seems to be her favorite.
Hopefully this will help someone else who is having a hard time with this.
Edited to make it somewhat coherent....
Re: PSA for those with LOs who hate the car seat
Natural miscarriage @ 8 weeks - 3/8/2005
Big Brother "Skippy" born - 2/28/2007
Missed miscarriage - (EDD 3/5/2013) - D&E @ 11 weeks - 8/8/2012
"Hen" (EDD 6/7/2013) - born sleeping @ 19 weeks - 1/15/2013
"G-Unit" born - 4/14/2014 and he's 100% perfection!!
Baby Girl Born: April 2014
If you ask me what I came to do in this world, I, an artist, I will answer you: