"D-ear " is designed for people who wears glasses. The headset sheath is designed to avoid the contact with spectacle frames, which effectively relieves the ear discomfort caused by traditional headset pressing spectacle frames to ears. Furthermore, the Ultra-Soft Reversible Memory foam inlaid can cling to the ear comfortably, avoiding sound leakage, which brings people a better experience.

Formerly named Sun Wen Institute, the University of Electronic Science and Technology of China ‘UESTC’ Zhongshan Institute, was set up in October 1986 with the approval of the State Education Commission of China. In October 2002, the present incarnation of Zhongshan Institute was established, operated by a cooperative management system from UESTC and Zhongshan Municipal Government. Although falling under the direct jurisdiction of the State Education Commission of China, this co-created institute also enjoys the director-level membership of the NationalAssociation of Independent Institutes.