Officers and soldiers of a unit of the Beijing Garrison region wore noise reduction oswd-2c earphones for shooting training "It's very practical to wear this headset during shooting training, which effectively reduces the noise interference and hearing damage during shooting. It feels like adding a 'silencer' to the ear, but you can hear the password clearly. The training efficiency is greatly improved!" Recently, on the shooting range of a unit of the Beijing Garrison, officers and soldiers participating in shooting training have more "equipment" than usual - a noise reduction oswd-2c earphone developed by the sixth medical center of the PLA General Hospital. The research team of the Department of Otolaryngology Head and neck surgery carried out special research In the daily training of officers and soldiers, the noise produced by weapon shooting and explosion often causes hearing damage and tinnitus, which is an urgent problem in military medicine. In view of this practical problem, the medical department of Otolaryngology Head and neck surgery of the sixth medical center of the PLA General Hospital launched a special study on military noise and hearing impairment. A new communication noise reduction headset for shooting range training was developed by measuring on-site noise, visiting grass-roots units, investigating domestic and foreign literature, and conducting many operation experiments. Experts check for ear damage for officers and soldiers "This noise reduction headset reduces noise exposure through preventive measures, effectively reduces noise interference during shooting, and has a wide effective communication range, so that officers and soldiers can concentrate on shooting training, so as to improve shooting accuracy." Yang Shiming, director of the medical department of Otolaryngology Head and neck surgery of the center, said. (Gao Yang, Mao Yu, Chen Zheng) (outlook new era)