Infrared teaching public address system product characteristic:
　　 　　 “the new sense of hearing” takes to us is not in the market condition the existing similar products redundant manufacture, but is synthesizes in the market condition similar products all merits, the screen abandons its shortcoming to turn to a new generation the product, has custom-made specially for the teacher attending class quantity body attaches the user-friendly design extremely the infrared wireless public address system, its most prominent merit lies in:
　　 First: High security, against string frequency.　
　　 The infrared light wave carrier cannot pass through the wall, congenital has the secrecy and the easy isolation, can overcome between the neighboring classroom the string frequency question (ordinary radio microphone often to have string frequency question) effectively.
　　 Second: High anti-jamming.　
　　 Uses the infrared light wave transmission technology to realize amplifies wireless, infrared not teaching environment sound wave, electromagnetic wave (for example handset, intercom and so on) the disturbance, realizes amplifies purely, pronunciation even clear.
　　 Third: The colony interoperability is good.　
　 Uses the identical frequency the infrared photoemission receive, any receiver may shoot the match with any, cannot transform the frequency spot. So long as each classroom installment has the infrared receiver, the teacher brings any launcher to be possible to use directly to any classroom, the teacher uses extremely conveniently.
　　 Fourth: Extremely good mobility.　　
　Uses the high tech technology, achieves the low power launch, such launcher is very exquisite facilely. Teacher may facilitate moves to classroom any position, any position, will walk while uses amplifies the suburb fruit not to change.
　　 Fifth: Against whistles by the nature to be good.　　
“the new sense of hearing” uses the antijamming microphone, reduced the user to produce gratingly greatly in the use process whistles by the sound.
　　 Sixth: Uses is simple, is convenient.　　
“new sense of hearing” use “fool type” design, when use the simplicity of operator, does not need the specialized instruction, raised teacher's working efficiency greatly.
　　 Seventh: User-friendly design.　
　 “the new sense of hearing” uses the launcher acted according to teacher's custom, the hobby has designed many kinds of designs. Has the chest to hang the stealth type (KS-HG), grasps the microphone type (KS-HA), portable and so on, moreover acts according to aims at the school classrooms to have slightly has big and was loaded with other public address system's classroom, we have designed the integration easily (KS168), the double box high efficiency (KS268), the promotion (KS-400), portable (KS568), the arm hangs the power amplifier (KS668), the 2U cabinet (KS868), the user may act according to the actual situation to select and purchase.
　　 Eighth: Health, green, environmental protection.　　
“the new sense of hearing” uses the infrared optical transmission, the electronic component is the environmental protection material, to human body beneficial harmless, is the genuine health product. (amplifies wireless to the human body has certain radiation damage.