<https://www.marshallmusic.co.za/product/hercules-universal-dj-controller/#product>
<http://schema.org/description>
"1/8” (3.5 mm)  line-in input\r\n\r\nIntegrated built-in audio interface\r\n\r\n2 RCA outputs for the mix (for speakers)\r\n\r\n1/8” (3.5 mm) stereo mini-jack output for headphone monitoring"
<https://www.marshallmusic.co.za/product/hercules-universal-dj-controller/>