头戴送受话器 meaning in Chinese

head set
headset

Audiovisual systems - sound system equipment - part 7 : headphones and earphones
视听系统.音响系统设备.第7部分:头戴送受话器和耳机
Methods for measuring transmission performance of telephone handsets and headsets
电话手持送受话器和头戴送受话器的传送性能的测量方法
Sound system equipment - headphones and earphones associated with portable audio equipment - maximum sound pressure level measurement methodology and limit considerations - general method for " one package equipment
音响系统设备.与便携声学设备相连的耳机和头戴送受话器.最大声压水平测量方法学和限制.成套设备通用方法