AudioQuest ThunderBird BiWire Jumpers with 500 Series Connectors Silver (Set of 4) Plugs:1 x Male Banana > 1 x Male Multi Spade Its IP65 rated waterproof enclosure ensures hpw feature mic Its IP65 rated waterproof enclosure ensures that Leon’s next level audio technology is fully sealed away from weather one single ended Available with AudioQuest’s 500 Series Hanging Silver plated Purple Copper spades or bananas on either end — simplifying the connection where the speaker cable is attached ThunderBird BiWire Jumpers employ Direction Controlled Solid Perfect Surface Copper+ (PSC+) covered with a Conductive Carbon loaded extrusion that reduces RF pick up