Feature:

Sensitivity:-40dB ± 3dB
Directivity: Omnidirectional
Impedance: ≤ 2.2KΩ
Speaker diameter: 40.0mm
Impedance: 32Ω
Frequency response: 20 ~ ~ ~ ~ 20kHz
Output sound pressure: 104.0dB ± 3dB (1KHz)
Plug Diameter: 3.5mm