Alpine PSS-SX01 Weather-Resistant Side-by-Side Roll-Bar Speaker System With Amplifier And Bluetooth Receiver This complete sound system combines the premium sound you've come to expect from Alpine as well as a unique design that will complement the look of your Side-by-Side. As an easy add-on for any existing Side-by-Side with 1.5"-2" rails, the PSS-SX01 includes everything you need for an exciting music experience, including two enclosed 6.5-inch speakers, a grille-mounted, 1-inch teteron dome tweeter, and one 4-channel amplifier all weather-resistant against the elements. Stream music directly from your smartphone without a radio or head unit source with the included Bluetooth Adaptor. The module allows for quick and easy pairing to your smartphone so you can listen to your music during your drive. Features: 6.5” 2-Way Mid Bass Drivers KTA-30FW 4-Channel Weather-Resistant Tough Power Pack Amplifier KCX-BT01 Weather-Resistant Bluetooth Adapter ASA 978 B+ Fiberglass Speaker Pod with Folding-Style Clamp Additional speaker and power wire may be required for installation. Speakers: Enclosed 6.5” 2-Way Speakers 1” Teteron Dome Tweeter Rated IP55 Weather-Resistant Steel Frame Amplifier: Alpine's Class D Amplifier with Dynamic Peak Power (DPP) 4-Channel Power Pack Amplifier Rated IP66 Weather-Resistant Bluetooth Adapter: 12V Weather-Resistant Bluetooth Adapter Complete Wireless Connections Bluetooth 4.0 Built-In Line Driver for 3x Voltage Output Music Signal Remote Trigger Output Speaker Pods: ASA 978 B+ Fiberglass Pro-Style Folding Style Clamp that will fit 1.5"-2" Rails. Rotating Coated Aluminum Base 90-Degree Plug with 20AWG Pigtail Rated IP65 Weather-Resistant