It's a Snuza HERO! This is a sensor that detects a baby's body movement. I received it as a gift, so I don't know when it was purchased, but I've confirmed that it works(^^) It comes with the manual, case, and spare batteries! It reduces anxiety about accidents during a baby's sleep. They're expensive to buy, so why not try it out? It's in good condition, but please understand that it's been stored at home. To reduce shipping costs, the outer box will be folded for shipping. Thank you for your understanding. #baby #sensor #sleep #snuza #HERO #babysensor #bodymovementsensor #bodymovement #monitor #babymonitor #purple