180W Mid Range Motorcycle Speakers with Aluminum Stereo Main Unit. High Performance Amplifier Built-in.Support Bluetooth Wireless connection up to 15 meter 3.5mm Audio Jack AUX IN Available. Support USB and Micro--SD Card MP3 files. Support USB Charging. FM Radio. Clock Display.Perfect for Motorcycle ATV UTV Electric Bike Marine Boat Bluetooth Wireless: Stream your favorite music and radio channel from your smartphone. Compatible with / 5 / 6 / 7 / 8 / X, , Android Galaxy S Note Series and any smartphone devices. Superb Crystal Sound Quality. Advanced Waterproof Design(Speaker Only). Great for outdoor use.Easy Installation: Comes with all necessary hardware and wiring. Plug and Play. Standard 12V Power Connection. Bluetooth Protocol: AVRVP1.0, GAVDP1.0, ADVTP1.0, A2DP1.0,Wireless transmission range more than the 15m,Frequency range:20Hz - 20KHz 1) Bluetooth Wireless 2) 3.5mm Audio Jack AUX IN 3) USB 2.0 4) Micro-SD Slot 5) FM Radio 6) Included Optional LED back-lit Wired Control 7)