Monster Mobile Audio Cable 3.5mm Male to Male Stereo Audio Cable-4 feet Black/Dull Black 3.5mm male-to-male stereo audio cable transmits audio in stereo format Works with any device equipped with standard 3.5mm audio jack. Connects smartphone, MP3 player, or tablet to car stereo or portable speakers Duraflex protective jacket protection from cuts and abrasion. Maintains signal strength and ensures a longer life span Monsters Live Forever guarantee Tangle-free design avoids knots that fray cables. Re-enforced connector head to avoid breakage at connector