40mm 16ohm Copper Ring High-End Diaphragm Headphone Speaker Unit Highly Recommended for DIY Headphone

The price USD29.9 for a pair speakers, you will receive 2pcs speakers. Free shipping with international tracking number.

The diaphragm used the same material as AKG N90Q, so the sound performance must be great, just different size and different impedance. We also don’t know the original headphone brand and model of this 40mm speaker, but the price is definitely very expensive.

The original AKG N90Q headphone speaker link is: https://www.ebay.com/itm/254623434865