Used only a few times. Vibrates and has a heartbeat sound. Can strap to any swing or bouncer. Pictures of it laying on top of the mamaroo for visualization. Retails for $180 Mamaroo sold separately (sold) Holds your baby just like you do, with gentle vibrations and heartbeat sounds. Relieves gas, colic and reflux. Strengthens neck, back and torso. The Babocush Comfort Cushion was designed by a mum for those times when you need an extra pair of hands to soothe your baby, whether they're fussy or suffering from symptoms of colic and reflux, and none are available. It is a shaped foam mattress that attaches to the Babocush Ergonomic Bouncer or to almost any other bouncer, rocker or baby swing, at an angle that simulates the position of laying against a parent’s chest.