Broadcast mode - use solo or with RALLYBAR family products. LED lights syncs to music. 150Wrms Class-D amplifier. IP66 Rated water and dust resistant. Party Mode - connect to two Bluetooth devices. JBL Original Pro sound. Mount kit design offers multiple position combinations. Support Bluetooth USB Disk and 3.5mm Auxiliary input. 3.5mm Auxiliary output. 3 Gain settings when connected by Aux-in - 2V 4V 6V. Transducers: 4 x 2.75" woofers 2 x 1" tweeters 2 x 7.2" passive radiators. Dimensions: 21.15" x 5" x 4.625".