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Product advantages:   Cable: APS advanced material, single-core shielded cable, very durable, 1.5 meters in length, can be used freely.   Mist head: Mi core is not easy to produce howling and clear voice.   Craftsmanship: It is produced by the factory itself, and the quality is guaranteed. Please rest assured to buy!   Product attributes:   Mist head size: φ 6.0 × 2.2mm high sensitivity anti-interference Mi core Sensitivity: -32dB ± 1dB Directionality: omnidirectional Impedance: ≤ 2.2kΩ Working voltage: 2.0V Frequency range: 100-16kHz Signal to noise ratio: greater than 60dB Plug diameter: 3.5mm