Off Road Sound System - ATV20Features: Fully Marinized 450 Watts Max Built-in Amplifier, Aux Input Compatible with Audio Output of Smartphones and other MP3 Players Frequency Response: 45-25kHz Sensitivity: 90dB Weather Proof 6.5" Poly Injection Cone Speakers Soft Dome Diaphragm High Performance 1.5" Weather Proof Tweeter 3.5mm Input Jack Speakers Powered by Internal Amplifier Plug and Play for Easy Installation and Removal Includes (2) Heavy Duty Zip Ties and (2) Heavy Duty Straps with Velcro® for any Mounting Position Sizes: 26-1/2" (L) x 10-1/4" (W) x 7-3/4"(H) Ideal for ATV's, UTV's and Side by Sides! Category: Boss Audio Off Road Sound System - ATV20 ATV - 2 - 450 WSpecifications Designed for: ATV Speakers number: 2 Number of watts: 450 W Remote included: No Bluetooth: Yes Color: Black AM/FM: Non CD/DVD: No Receiver Model: ATV25B Speakers model: Tweeters Number: 105618