Rev up your music on land or sea with the ASK904B. 64 Weatherproof All-Terrain Amplifier and Speaker package. This combo kit includes the MC900B Amplifier and 2-Pairs of MR6W 6.5 Marine Speakers. The 4-Channel Amplifier can power up your Speakers, Subwoofers or a combination of both. Plug into the MUSB35 USB to Aux Adapter to charge and play your USB Compatible Smartphone or other USB device. Bluetooth Audio Streaming lets you play music apps like Pandora and Spotify. No need for an In-Dash Head Unit to play your music. You can control it all with the Inline Multi-Function Remote. 64 Amplifier features weatherproof connectors to prevent corrosion and provide protection against the elements. Aux, Low Level and Pre-Amp Outputs. USB Charging and Playback, Inline Multi-Function Remote Control. Two Pairs of MR6W 6.5 Full Range Marine Speakers with Poly Carbon Cone and Rubber Surround. Our Class-A/B amplifiers feature specific linear circuitry that increases sound quality and power output while reducing distortion and improving efficiency. 4-Ohm stable meets the power-load requirements of full-range automotive speakers and most subwoofers, which predominately feature 4 ohm impedance. Wirelessly stream audio via Bluetooth from compatible devices so you can listen to streaming music services such as Spotify and Pandora through your system. Low-level inputs accept pre-amp output signals to allow for the addition of amps and processors to units equipped with RCA Pre-amp outputs. The speakers are weatherproof which means they are protected against moisture from rain, splashed water, fog and other elements. High-tech, state-of-the-art waterproofing materials plus special UV coatings for plastic surfaces, coated circuit boards and connections ensure these marine and outdoor products are corrosion resistant and protected against harsh elements. Supports USB flash drive files up to 32 GB for music playback on units without monitors and music.