The Best Rechargeable Batteries, ... Fisher-Price Baby’s Bouncer. 4.6 stars, 1,204 reviews. $33 ... The sounds aren’t too much, as far as toys go. I have heard much worse.

Since its introduction in 2009, Fisher-Price has sold some 4.7 million Rock ‘n Plays—more than one for every 10 babies born in the US during the past decade.