Motorcycle Speakers: 4 high power 4-Inch full-range speakers and 1000W amplifier, 2x External Antenna, wired control are included in this one package. perfect for all sports use. 1000W Power: 1000W Amplifier 4 Channel 4 Full Range off-road speaker system with high-performance bass, listen to high-quality audio on your ATV, UTV, quad, Jeep or other outdoor vehicles! Multifunctional Speakers: 5.0 Bluetooth receiver allows wireless connectivity to any Bluetooth-enabled smartphone or music device; 3.5mm Audio Jack AUX connect standard devices; USB Port support SD Card and MP3 files.FM Radio and Wired Control. Weatherproof Speakers: 4 inch chrome-plated speakers built with high-quality ABS Material. Advanced IP56 waterproof design(Speaker Only). Great for outdoor use. Easy to Install: Comes with all necessary hardware and wiring. Supports 7/81-1/4 bar size. Compatible with Ape Hanger and crash bar with 1-1/4" bar diameter. Plug and Play. Standard 12V Power Connection.