1 PCS 4ohm 3W Speaker Mini Full Frequency Stereo Sound Small Hifi Speakers Diameter 40mm High 20mm 1.5 inch Speakers
Model: diameter 40mm high 20mm
Category: Electric (moving coil)
Uses: Mini speaker, stereo
Shape: round
Composition: PU side black cap
Diaphragm material: paper
Magnetic form: the magnetic type
Frequency characteristics: Full band (full range)
Rated power: 3 (W)
Rated Impedance: 4 (Ω)
Frequency response: 0.20 ~ 20 (kHz)
Sensitivity: 83 (dB / W) S / N ratio: 83 +/- 3 (dB)
Harmonic distortion: ≤ 5 (TMD%)