4" BM40AMPBT Amplified Waketower Speakers - Matte Black - 500WThese Matte Black 8" BM40AMPBT Amplified waketower speakers provide next-level audio through a stylish design. Boss Audio tower speakers are marine grade, so you can have outstanding sound quality on your boat or UTV. Features: Full-Range Class D Amplifier Fits 1" to 2" wake tower pipes IPX5 rated in-line remote w/illuminated soft-touch controls Polypropylene Woofer Cone and Rubber Surround 1" Tweeter Technical Specifications: Speaker Impedance - 4 ohms Cone Material - Water-Resistant IMPP Sensitivity - 94dB Frequency Response - 45HZ - 20KHZ Max Power - 500W 250 Watts RMS Dimensions (W x L x H) - 5.54" x 7.17" x 7.43" Weight 5.58 lbs In the Box: Two (2) 2-Way waketower speaker Bluetooth multi-function controller Power wire harness Mounting hardware Instruction manual *Sold as a PairWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Specifications: LED Lighting: No QTY: Pair Size: 4" Watts Max: 500w Watts RMS: 250w Box Dimensions: 8"H x 9"W x 16"L WT: 8 lbs UPC: 791489124607 Owner&';s Manual (pdf)