Ramp agent hardhat HM3101ACke(TK2100)

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ANR Aviation Headset (ANR power: 9V battery) Kenwood Tk2100 plug Super Soft Double Foam Head Pad Noise-canceling electret Microphone Precision flex boom for perfect microphone placement Easy-to-wear super soft silicone gel ear seals Headband Size Adjustment Straight cord from headset to molded plug, 150CM Assembled strictly following the FAA TSO standards Color: Black, green Type: Dynamic (F30) Frequency Response:50 Hz to 20 kHz Sensitivity:95+/-5 dB SPL (1 kHz, 1 mW input per earcup side) full volume on ear simulator Active Noise Attenuation: Dynamic 42 ohms: Rate Input: 30mW Max.Input:100mW Speech Sound: Dynamic 300 ohms: Rate Input: 30mW Max.Input:100mW Microphone and Amplifier: Element Type: Noise-canceling electret Frequency Response:100Hz to 5 kHz Operating Voltage (supplied by aircraft ):8-32 Volts DC Matching Impedance: 150-1000 ohms Sensitivity:-33+/-4 dB (ref: 0dB SPL=20.0uPa at 1 kHz with 10 Vdc 150 ohms AC load) Operating Temperature: -20 to 70°C Cordage: Straight cord from headset to molded plug, 150CM Intercom Connections Plug: Earphone Plug： (3.5F phone plug) Microphone Plug： (2.5F phone plug) Noise Reduction Specifications: Attenuation Frequency Band__________20Hz~20KHz Main Attenuation Frequency Band__________20Hz~600Hz Attenuation Capability__________18~21dB Power Consumption__________30 mW Headset size range Height: 10 to 14 cm Color: Green/Black Boom: Flexible Boom