Speaker Cables are built for durability and designed to deliver flawless sound from source to speaker. Featuring fine-stranded ultra-pure copper that's been bundled to accurately transfer the full range of audio frequencies to your speaker for a lifelike sound. And with highs, mids and lows transferring at the same rate, your music, media and games have never sounded more pristine. Connects speakers and other audio equipment. Indoor use only. Do not use behind wall.