Overview：
CCA C12 Earphone Ring Iron 12 Unit In-ear HiFi Noise Reduction Heavy Bass Fever Earphones DIY Universal Call
Specification：
1. Product name: CCA C12 original in-ear earphone
2. Brand: CCA
3. Model: C12
4. Headphone type: In-ear
5. Impedance: 24 Ω
6. Sensitivity of headset: 111 dB/mW
7. Frequency range: 7-40000Hz
8. Interface: 3.5mm gold
9. Plug Type: L Bend
10. Cable length: 1.2MplusMn3CM
11. Color: blue, gold
12. If using cable: Yes
13. Headphone interface: 2PIN interface
14. With microphone: Optional
15. Cable can be replaced: Yes
16. Drive unit: 1 DD + 5BA Hybrid Drive unit
Headphone type: In-ear headphones
Wear mode: Ear hanging
Headphone output audio source: portable audio-visual
