Redurbished Mini speaker

Specifications: maximum diameter 4CM
Magnet position 2.2CM
Thickness 2CM
Type: Electric (coil) use: Pa
Shape: round composition: single
Rated power: 3 (W) nominal impedance: 4 (Ohm)
Frequency response: 170 (kHz) point: all
Sensitivity: 100 (dB/W) noise ratio: 1 (dB)
Harmonic distortion: 1 (TMD%)