Resonant Module and Vibration Speaker

Our company specializing in the production of R & D for different products of resonance oscillator -- no horn speaker-- resonance/vibionrat speaker; It can drive any hard surface sound, such as: Wooden desktop, floor, glass, metal surface, wall. The resonance acoustic resonator, manufacturing is no speaker sound, the vocal intensity highly infectious, especially field telepresence as concert instrument reduction, product manufacturing process deep within and beautiful on the