Speaker:
1.Driver unit: Φ40mm
2.Speaker impedance:32Ω
3.Maximum power input: 25MW
4.Frequency response: 100Hz-20kHz
5.Speaker sensitivity: 119dB ±3dB (at 1kHz)
Mic:
1.Size: Φ4.0 x 1.5
2.Mircophone sensitivity: -42DB±3DB
3.Working voltage: 4.5V
4.Impedance: 2.2K
5.Frequency response: 100-16kHz
6.Direction nature: full
Interface: 3.5mm mobile phone jack
Cord length: 1.2m