BOSS Audio MC500 All-Terrain, Weatherproof Speaker And Amplifier Sound System, Two 3 Inch Speakers, Compact Amplifier, Multi-Function Remote Control, Ideal For Motorcycles/ATV and 12 Volt Applications Speakers Powered By High Performance, 2 Channel, Compact, Weatherproof Class A/B Amplifier 3.5 mm Aux-In Compatible with Audio Output of iPod / iPhone, Smartphones and MP3 Players Included: Two 3 Inch Chrome Speakers, One 2 Channel Amplifier, One Multi-Function Remote Control, Adjustable Brackets Fit Handlebars from .75 to 1.25 Ideal for Motorcycles, ATV's, UTV's, Scooters, And Other 12 Volt Applications Speaker Dimensions: 4.8 x 4 x 6.1, Amplifier Dimensions: 5 x 1.5 x 3, Gift Box Weight: 5.2 3 Year Platinum Online Dealer Warranty