Mini Speaker 3W 4R Impedance

Specifications:
Maximum diameter 4CM
Magnet diameter 2.2CMz
Thickness 2CM
Category: Electric (moving coil) Purpose: PA
Shape: Round composition: single type
Rated power: 3 (W) Rated impedance: 4 (Ω)
Frequency response: 170 (kHz) Directivity: Omni
Sensitivity: 100 (dB / W)-noise ratio: 1 (dB)
Harmonic distortion: 1 (TMD%)