Professional Speaker

Sound means in addition to human language, music, other sounds, including sound natural environment sounds, animal sounds, machine tools, all kinds of sounds emitted by human action and so on. Presumably including audio amplifier, peripheral equipment (including pressure limit, effects, EQ, VCD, DVD, etc.), speakers (speakers, speakers) mixer, a microphone, a display device, etc. together. According to statistics, after years of development, the market size in 2011 China's professional audio and lighting industry has more than 36.5 billion yuan, a growth rate of more than 11% of the company's commitment: product warranty for one year!