Batter up! The baseball Boom Bowl sound amplifier will change the way you listen to your favorite sounds. You simply place your smartphone or mini smart speaker in the Boom Bowl, and you’ll be amazed by the incredible sound difference — sounds are amplified by more than 15 decibels. Compatible with most smartphones and mini smart speakers like Amazon’s Echo Dot and Google’s Home Mini, the Boom Bowl 2.0 also includes a port so you can charge your device while using it. Made from acoustically designed ceramic, this portable powerhouse provides crystal clear sound quality.