Monster Rockin' Roller 4 Bluetooth speakers - Black

Open box store return. Item has been professionally inspected, cleaned, and fully tested for quality assurance. May come in original retail box or non-retail packaging (white/clear bag). Box may show wear. The Monster Zone app puts full command of your Rockin' Roller 4 in the palm of your hand.Adjust Volume Levels - Control volume levels on your Rockin' Roller 4 through your mobile deviceControl LED Lighting - Adjust brightness and LED color though the "Monster Zone Control" appSource Selection - Change source, control FM radio, and even control bass and treble!StackableBuilt-in slots allow you to stack and lock a second RR4 speaker on top. Enables secure transportation and clutter-free setup for your audio system.*Additional speaker sold separately.Bottle OpenerA bottle opener built into the back of the speaker easily opens most standard sized bottle tops. Easy one-handed cap removal is hassle- and mess-free.NOAA Weather RadioQuick and easy access to local NOAA Weather Radio channels. NWR is a vital tool for outdoor enthusiasts, offshore workers, and off-grid adventurersLuggage-StyleTelescoping carry handle and rolling wheels make for easy and comfortable transportation. Made to securely traverse most flat surfaces, including pavement, paneling, etcLED LightsFront panel LED lighting with custom color and brightness adjustment. Provides effective illumination of the speakers control panel and to easily location in low-light situations100 Hours!Dependable wireless battery to play audio for hours on end. Perfect for weekends in the outdoors, where plugs are scarce100 Watts!Big-watt drivers deliver high-power audio at a maximum output of 100W. The extra audio power is perfect for parties of all sizes, indoors and outdoor