ECN21 Noise-canceling headphones3 July 2020
ECN21 Noise-canceling Headphones for Wireless Hytera PD605
Heavy-duty headset for loud environments
Specifications:
Operating temperature range: -30 ° C to +55 ° C
Storage temperature range: -40 ° C to +55 ° C
PTT service life: ≥100,000
Sound pressure level: 90 dB ± 4 dB / 1 W at 0.1 m 1 kHz
Impedance: 2 x 8 Ω ± 15% at 1 kHz
power: 1 W (nominal) / 1.5 W (maximum)
Microphone Sensitivity: -51 ± 3 dB at 1 kHz 3V 2.2 k 0 dB = 1