-Speaker
1. Speaker : 50mm
2. Impendance: 64O±15% (f=1KHZ)
3. Sensitivity: 115±3dB
4. Frequency response: 50-20KHZ
5. Ratred Power: 10-20mW
-Microphone
1. Size: 6.0x2.7mm
2. Impendance: 2.2KO(max)
3. Sensitivity: -42±3dB
4. Frequency response: 50-10KHZ
5. Type: Omni-directional
6. SNR: 60dB