BOSS Audio BM40AMPBT 500 Watt (Per Pair), Bluetooth, Amplified, 4 Inch, Full Range, 2 Way, IPX5 Rated Marine Grade Roll Cage/Waketower Speaker Pods (Sold in Pairs), Wired Bluetooth Controller Included Bluetooth Audio Streaming Inline Wired Remote - Play And Control Music And Apps Like Spotify / Pandora wirelessly All-Terrain Speaker System For Marine and Powersports, Full Range Built-In 2 Channel Class D Amplifier Compatible With Audio Output Of iPod / iPhone, Smartphones, and MP3 Players Adjustable Cast Aluminum Swivel Clamps fits bars From 1.5 to 2.5, Great for ATVs, UTV Cages or Waketowers 4 Inch Poly Cone Speakers, 1 Inch Dome Tweeters, Low Battery Shut Off, Zero Standby Current Draw Industrial Matte Finish, Frequency Response - 130Hz - 20 kHz, Rubber Surround Dimensions: Depth 5.5 x Width 5.5 x Height 4, Weight Per Pair: 8.4 Lbs. 3 Year Platinum Online Dealer Warranty