Impecca SPORTS Baseball speaker (Size of a Softball) 3.5mm port plays music from MP3/MP4 Players, Smartphones, Cell phones, Tablets. CD Players, & More! Realistic design adds a sports vibe to any decor High Quality sound performance with powerful dual driver units (6W RMS : 3W X 2 Amplify sound by connecting multiple speakers to each other using included cable Built in Rechargeable BatteryPlays up to 9 hours music per charge (charging cable included)