Legendary Technics sound quality in a gorgeous, high-end in-ear monitor.  The Technics EAH-TZ700 uses an innovative 10mm driver to ensure premium audio reproduction, with distortion-free highs and mids, and deep, rich bass. The proprietary Air Control Chamber inside the unit precisely controls the internal airflow for the perfect balance among frequency bandwidths. Two types of cables are included so users can choose their preferred connection environment and each of two earpiece types comes in four different sizes for a custom, comfortable fit Legendary sound quality in a wired earbud, with graphite black finish and gold-plated terminals 10mm driver for premium audio reproduction, with distortion-free highs and mids and deep, rich bass. Air control chamber precisely controls the internal airflow for perfect frequency balance Dedicated balanced and unbalanced cables included, with a general-purpose MMCX connector 4 different sizes of both round and oval earpieces for sound insulation and a comfortable fit