4'' Waterproof Rated off-road speakers with amplified wireless BT remote control receiver, Compact dual vehicle speaker system for ATV, UTV, 4x4, Jeep, power sports vehiclesfeatures: waterproof Rated speakers + Wireless BT controller system Kit Universal mount system for convenient audio control wireless BT music streaming Ability Marine Grade Construction water-resistant, weatherproof design Compact & high-powered system output great for cars, trucks, ATV’s, UTV’s, 4x4’s, boats, Marine watercraft, & power sport vehicleswhat's in the box: (2) 4”-inch Marine speakers amplified Bluetooth Control unit speaker connection wire wireless BT control unit: built-in wireless BT audio receiver 2-channel amplifier style works with all of today's Latest Devices smartphones, tablets, Laptops, Computers, etc. Connect & Stream Audio from additional External Devices aux (3. 5mm) input full range Stereo Sound Reproduction integrated power wiring Harness pre-amp RCA Out to any OEM/factory-made mono-block/full-range amplifier surface/Surface/flush Mount/hand bar mounting kits included universal vehicle mounting can be in-console flush mounted or roll bar/roll cage mount anti-thump on/off option Soft turn on/off option overload & power protection circuitry wireless BT control unit technical Specs: Power Output: 300 Watt max 2x75 watts RMS @ 4 Ohm 2x 150 watts Max @ 4 Ohm wireless BT version: 4. 2 wireless BT network Name: ‘PyleUSA’ wireless Range: 30’+ ft. Marine Grade IP65 rating T. H. D: 0. 1% S/N ratio: > 95 dB channel separation: > 65 dB Frequency response: 10 - 40 kHz fuse: 10a power: DC 12V unit Dimensions (diameter x Depth): 3. 5” x 4. 17” - inches Marine speakers: Pro audio power sport speakers sound system: (2) x woofers + (2) x 0. 5” Tweeters 2-way Full Range Stereo Sound Reproduction quick-connect spring-loaded speaker terminals impressive bass Response sleek design, Machine molded speaker cabinet Housing rugged, universal mount bracket design for roll-bar/roll-cagemarine technical Specs: Power Output: 800 Watt max Marine Grade Waterproof rating: ip-x5 speaker style: passive speakers speaker Type: polypropylene cone, Butyl rubber surround (x2) tweeter Type: neodymium dome (x2) frequency response: 85Hz-20kHz impedance: 4 Ohm magnet type: 20 oz. Circuit Mid-Woofer voice coil type: 1. 0", aluminum Sensitivity: 90 db +/- 2 dB @ 1M/1W Universal mounting brackets roll-bar/Roll-Cage Diameter: 1. 25” 2. 0” -inches power supply: DC 12V speaker size (front diameter x length): 5. 6” x 7. 3” -inches (Each) sold as: 1 weight: 6. 95 lbs.