Package include:Speaker driver 2pcs(1Pair).
Not included installation instruction ,tools or adhesive, Professional technician is needed for installation. We won’t responsible for any damage due to improper operation.
Hi-Res Music: Hear every detail of your favorite songs with this 40mm drivers. The Composited Carbon reproduce thumping bass and crisp treble that extends up to 40kHz for improved clarity.
Compatible With most 40mm size driver Headphone DIY Replacement Speaker Driver Unit
Impedance : 32 OHM .
Rated power : 0.5W .
Frequency response : 20-40 kHz .
Sensitivity : 111 (dB/W) .
Harmonic distortion : 2 (TMD%) .
Frequency characteristics: full frequency band (full range).
Diaphragm: Composited Carbon Film .
Uses: headphone sound unit DIY .












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