ASK904B.64 4 Channel Amplifier & 2 Pairs of 6.5' Speaker Kit - White No room for a stereo head unit?  Want to listen to your music from a Bluetooth enabled device?  No worries.  Boss has taken audio to the next level with a powerful amplifier and weatherproof speaker kit. This kit packs a punch with the MC900B 4-Channel amplifier w/multi-function controller, a two (2) pairs of 6.5' MR6W speakers, waterproof pouch and a USB/Aux accessory extension cable. All in one and ready to play all your music on the water or in any environment. Features: * Weatherproof 6.5' MR6W speakers - White * Hideaway antenna * 4-Channel Weatherproof 500W amplifier with multi-function controller -  Included in the Box: * MC900B Bluetooth amplifier w/multi-function controller  * Two (2) pairs of MR6W speakers * Waterproof pouch * MUSB35 USB/Aux Accessory Extension Cable * Mounting hardware * Instruction manuals *SiriusXM Promotion - Get 3 Free Months SiriusXM Streaming Service - LINK [http://productimageserver.com/banners/SiriusXMStreaming3MoPromo.pdf] *Sold as an Individual Kit Warning [https://productimageserver.com/prop65/6pt.png]WARNING: 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 [http://P65Warnings.ca.gov].