High Volume The Securlty warning
Even In The worst Environment It Works Well With Clear Voice
Durable, rellable Quality
Appliceble To All kinds Of Passenger Cars Suites dinerent Enviroment
Imported double leaching latest waterproof techn-ology, net imports prronunciation diaphragm, the soundcrisp and sweel, imports of sheet malal, high temperature, good contact, polymers respiratory system, heatresistance, glass fiber reinforced nylon frame, high temperatue