Line Pull + Speaker JBL SRX906LA Powered Array Dual Back Accessory Column 6.5" EASY TO INSTALL: Just need EASY TO INSTALL: Just need to tighten the screws and adjust the rear view mirror to a suitable angle for the best view High fidelity Stereo And Heavy Bass: Bluetooth speakers provide different midrange and treble through a 2 * 3W full range precision acoustic driver CAD optimized structure stiffeners control flexing Specifications: Frequency Range