Best Earbud Earphone for Two Way Radio

Features:
1. Clear sound performance
2. Tiny thumb-sized microphone with PTT switch
3. Plug can be changed upon customer's requests

Microphone:
Microphone size: 6.0* 5.2mm
Sensitivity: -36dB± 2dB
Impedance: 2.2K ohms

Speaker:
Speaker size: 15mm
Sound pressure level: 103dB ± 3dB
Impedance: 32 ohms ± 15%
Audio output: 30mW