深圳电脑耳机厂家直销

深圳电脑耳机厂家直销 无线耳机一般是指以红外线传输信号的耳机系统，无绳耳机是指采用无线电波传输信号的耳机系统。红外耳机的工作频率从几KHz到几MHz，有效距离大约10米，耳机要在可视范围内；无线电耳机工作频率为VHF 130MHz-200 MHz、UHF 450 MHz -900MHz，大多数无绳耳机工作在UHF，可传输范围达100米，可以绕过障碍物。两副或多副无线/无绳耳机可能会相互干扰，所以选择它们的时候**选择有多个工作频率的品种，对于无绳耳机，工作在UHF比在VHF上受干扰的可能要小。这两种耳机都有背景噪声，较高档的型号都采用了降低噪声的技术。还要注意的是无线/无绳耳机电池的使用时间，一般不应低于8小时。 联系人：王先生 联系电话：18948708689 The wireless headset generally refers to the system of infrared signal transmission headset, wireless headset headset system refers to the use of radio signal transmission. Infrared headset working frequency from several KHz to several MHz, effective distance of about 10 meters, to the headset in the visible range; radio headset working frequency is VHF 130MHz-200 MHz, UHF 450 MHz -900MHz, most wireless headset working in UHF, but the transmission range of 100 meters, can bypass the obst**e. Two or more side wireless / cordless headset may will interfere with each other, so they choose the best time to choose a plurality of working frequency varieties for cordless headset, working in UHF than in VHF interference may be small. These two headphones have a background noise, the more expensive models are used to reduce noise technology. Also note that the wireless / cordless headset battery use time should be no less than 8 hours.  Contact: Mr. Wang   Tel: 18948708689