Hytera ECN21-P The Hytera ECN21-P is the updated ECN21 headset. A heavy duty, noise-cancelling headset with PTT and boom microphone. Microphone sensitivity -51dB ±3dB @1KHz Impedance 2.2KΩ PTT cycles speaker ≥100000 Speaker sensitivity 90dB ±4dB @1KHz Impedance 2 x 8Ω ±15% @1KHz Rated power 1W Maximum power 1.5W   *1-year manufacturer's warranty.

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