※ high-grade gray ABS shell, copper straw, nice; ※ There are two kinds of AC and DC supply, the use of more convenient; ※ comes with lifting bell tone sound, more humane design; ※ special high-quality heart-shaped and super-directional capacitance Mi Yi, reasonable electro-acoustic circuit; ※ wide frequency response, fully show high fidelity, clear bright tone; ※ special technical processing, to eliminate the microphone on / off when the impact of sound;
