A bouncer seat is a small chair or seat designed for infants and young babies. It allows them to sit upright and bounce gently while being safely secured. Full definition
Many baby bouncer seats don't require batteries and even if they do, your little one will still get the benefits of bounce, no batteries required. (blog.guguguru.com)
Never put babies in child safety seats, infant seats, or bouncer seats on a countertop or atop furniture. (kidshealth.org)
With my first baby, I placed her in a different brand of bouncer seat, expecting her little infant wiggles and kicks would create a soothing movement, but nothing happened. (mamanista.com)