Boss Audio Systems - 500 Watt/4 Channel Bluetooth Amplifier WITH pair Marine Speakers & Usb Cable - ASK902B6. Weather Proof Pair of MR6W 6.5" Full Range Marine Speakers with Poly Carbon Cone and Rubber Surround. 180 Watts MAX 90 Watts RMS Power Handling per Pair. MC900B has 500 Watt Max Power. 4 Channel Amp with Bluetooth Multi-Function Remote no head unit needed. Compatible with Audio out from Smartphones and MP3 Players. Aux, Low Level Inputs, RCA Pre-amp Outputs and USB Charging Port. Bluetooth Audio Streaming play music and apps like Spotify/Pandora wirelessly. Includes the Following:. Flush Mount Bezel for Remote. Mounting Bracket. 10' USB Cable. Protective Phone Pouch