JBL FLIP 6 BLUE. Tweeter diameter (imperial): 1.52 cm (0.6"), Tweeter diameter: 1.6 cm, Woofer diameter (imperial): 7.62 cm (3"). RMS rated power: 20 W, Speakers RMS power: 10 W, Frequency range: 63 - 20000 Hz. Connectivity technology: Wireless,