Product Features:1. Applicable to teaching amplifiers, waist pack machine, V section wireless microphone, U section wireless microphone and computer microphone.2. This microphone directly plug in the microphone, notebook microphone interface.3. Recording clear.4. The microphone arm can be bent to adjust the position.5. Small size, light weight, easy to carry.Specification:1. Connection plug: 3.5 mm (elbow)2. Microphone size: about Φ6.0 × 5.0mm / 0.24 × 0.20 in3. Sensitivity: -52dB ± 3dB4. Material: metal + nylon braided wire5. Directionality: Omnidirectional6. Impedance: ≤2.2kΩ7. Operating voltage: 2.0V8. Frequency range: 100-16kHz9. Signal to noise ratio: greater than 60dB10. Plug diameter: about 3.5 mm; about 100 cm ( 39.37 in ) braided wire