INV-BC4 Pre-Amp Bluetooth ControllerThis stand-alone audio solution solely focuses on the most popular mode of audio, Bluetooth.The new affordably-priced Infinity by Harman INF-BC4 Pre-Amp Bluetooth Controller from Prospec Electronics enables anyone with an enabled BT device to stream their favorite music out on the lake. Thanks to its small footprint, it won’t take up much space on your pontoon or deck boat, while the rotary encoder and large buttons are designed to be easily manipulated while you’re moving. Pairing to the controller is fast work, after which your phone or other device can safely tuck away in your glovebox, console, or pocket while you enjoy your musical experience.Installation is kept to the basics with nothing more than a 1-3/8-inch hole to flush mount the INF-BC4 and keep all hardware neatly out of sight. When you connect to an amplifier, the brand doesn't matter (though Prospec naturally recommends its JBL or Milennia Marine amplifiers). This all-weather product will offer you a heart-pounding audio experience with sophisticated styling to boot and simple, intuitive controls. An affordable alternative to a traditional stereo receiverWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.