Features 1.Adopts nylon braid, resist to stretch, resist to fold, prevent to wrap, do not tie knot, easy to store, longer service life. 2.Universal 3.5mm screw thread nickel plating plug, high fidelity design, effectively reduce sound quality transmission loss interference, further improve sound quality, stable performance, adapt to a variety of audio output ports. 3.Compact body with back clip design, can be arbitrary clip on the using of clothes, such as collar, T-shirt cuffs. 4.High sensitivity microphone head, add chip set, can effectively reduce the interference of the surrounding environment to the microphone, effectively block the echo and eliminate the noise. 5.Designed for teaching, tourist guide, promotions, lectures, etc, suitable for a variety of amplifiers. specificationCondition: 100% Brand New_x000D_ Item Type: Mini Microphone_x000D_ Model: 04A_x000D_ Material: ABS_x000D_ Color: As Pictures Shown_x000D_ Quantity: 3PCS_x000D_ Sensitivity: -52DB2DB_x000D_ Working Voltage: 2.0V_x000D_ Output Impedance: 680 _x000D_ SNR: 60DB_x000D_ Directivity: Single Directivity_x000D_ Frequency Range: 100-16kHz_x000D_ Plug Diameter: 3.5mm Single Track_x000D_ Wire Diameter: 2.0mm Knitting Wiring_x000D_ Weight: Approx. 43g_x000D_ Mic Core Size: Approx. 9.75.0mm/0.38x0.20inch PackageList3 xMini Microphone