Lanzar Model : OPTIMC90Opti-Drive 700 Watt Speaker System with Pair of 3'' Weatherproof Speakers, 4-Channel Amplifier, 3.5mm Input for iPod/MP3 Players, USB Charging Port, Dual Handlebar Mount for Motorcycle, ATV, Snowmobile etc. 700 Watts Total Channel Micro Amplifier with wire harness 2/4 Channel for upto four speaker hookup [175 Watts x 4]Includes Two handle-bar Mount Aluminium Diecast Weatherproof 2.25" Speakers Two additional amplified channels for a total of 4 speaker hook-up3.5mm Stereo Input Jack, Easy Connection to the Output of Other Audio Devices Like CD/MD/Mp3/Ipod, etc3'' Dual Aluminum die cast bullet SpeakerKapton Voice CoilPair of Chrome Handlebar Clamps Chrome Universal Handlebar Mount Rotary Volume ControlChrome Stainless Universal handlebar audio mount12 Volt T-TAP Plug for direct connection on american made MotorcyclesUSB charger and Satellite 5V plug Easy Chrome Stainless Mounting Brackets and Accessories includedSpeaker Dimensions : 4.8''L x 3.35''W x 3.35''H Amplifier Dimensions : 5.71''L x 3.05''W x 1.19''H The Lanzar Opti-Drive Series OPTIMC90 weatherproof speaker system is what you need to upgrade your audio system. This 700 watt mountable speaker and amplifier kit comes with a pair of 3'' weatherproof dual aluminum die-cast bullet-style speakers and four-channel micro amplifier to add some serious sound where you need it. Take your listening experience to the next level and stream music instantly when you connect your iPod/MP3 player or smartphone into the 3.5mm jack. Charge your device at the same time with the conveniently located USB port on the amplifier. This kit comes with everything you need to get going including, stainless mounting hardware, brackets and accessories. Create a custom system installation that will add some serious sound power. Whether you've got a motorcycle, ATV, snowmobile, this weatherproof speaker system will make your next ride the best one yet.