Go detecting with your preferred 3.5 mm (1/8-inch) headphones - with a low latency wireless connection, or connect a 1/8-inch to 1/4-inch Headphone Adaptor Cable (Part No. 3011-0369) to the threaded socket. Compatible with MANTICORE, EQUINOX 700|900, X-TERRA ELITE and X-TERRA PRO.