Check the listing for details. JBL Authentics 300 Portable Wireless Bluetooth Speaker. Color: Black, Condition: New. Listed at 499.95 USD. Bring together timeless retro style and powerful modern sound with this portable home speaker designed to elevate any space. Its classic seventies inspired look, complete with a premium leatherlike enclosure, metal handle, and iconic grille, makes a statement wherever you place it. Inside, precision tweeters, a full range woofer, and a passive radiator deliver a wide soundstage with clear highs and rich bass. Enjoy up to eight hours of wireless listening thanks to the built in battery, seamless Bluetooth and Wi Fi streaming, multi room playback, and automatic sound tuning. Dual voice assistants provide hands free control, while intuitive onboard controls and app support let you personalize every listening experience with ease.