porcelain speaker: 40mm/ frequency range: 20Hz- 25000Hz/ sensitivity: -58db±3db/ impedance: 32Ω/ frequency reponse: 30Hz- 16000 Hz/ maximum power: 100mW
porcelain speaker: 40mm/ frequency range: 20Hz- 25000Hz/ sensitivity: -58db±3db/ impedance: 32Ω/ frequency reponse: 30Hz- 16000 Hz/ maximum power: 100mW