BOSS AUDIO MCBK470B Black 1000 watt Motorcycle/ATV Sound System with Bluetooth Audio Streaming, Two Pairs of 3 Inch Weather Proof Speakers, Aux Input and Volume Control Boss Audio MCBK470B BLUETOOTH | 1000 WATTS MAX POWER ALL-TERRAIN(Water proof) SPEAKER AND AMPLIFIER SYSTEM Two Pairs Black 3" Full Range Speakers 1000 Watt Max Amplifier with Wired Remote Volume Control Bluetooth Audio Streaming - Stream your Favorite Music or Music Service like Spotify or Pandora Wirelessly One Pair RCA Inputs, 3.5 mm Aux Input Compatible with Audio Output of Smartphones and MP3 Players Frequency Response 80Hz to 15KHz, SN >85dB, THD: < 0.01% Includes Mounting Brackets Adjustable to fit 0.75" to 1.25" Handle Bars Great for 12V Motorcycles, Scooters and ATV's!