1. Drive Cell: Φ15.4mm Diameter speaker, 6U Mylar
2. Conductive unit: Φ3.5 Alloy Pin Head
3. Rated power: 3mW
4. Sensitivity: 115±3dB
5. Impedance: 32±10%Ω
6. Frequency response: 20-20KHz
7 Distortion degree: ≤1%
8. red, blue, black, green
8. Alloy metal with different color
8. Alloy metal with different color。