Amazon.com: UPBRIGHT Car 12V DC Adapter Compatible with JVC RV-NB 1 RV-NB1 RVNB1 Kaboom Dock Woofer CD Boombox 12VDC 12 Volt Auto Vehicle Boat RV Camper Cigarette Lighter Plug Power Supply Cord
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Naxa MP3/CD Bass Reflex Boombox & PA System with Bluetooth and BASS and USB Playback - Walmart.com
JVC RV-NB50B Boomblaster Kaboom Twin Powered Super Woofer Speaker System with CD/MP3/WMA/USB Compatibility and iPod/iPhone Dock - Grey/Silver : Amazon.de: Electronics & Photo