Noise Reduction Headphones, Product Type Noise Reduction Headphones, Compatible with Manufacturer Model Number 1000, Compatible Product Type Vibration meters, Overall Length 8 ft, Acceleration - Maximum Not Applicable, Acceleration - Minimum Not Applicable, Material Plastic, Frequency - Maximum 20 kHz, Frequency - Minimum 40 Hz, Includes 1/8 in Stereo Plug, Coiled 8 ft Cable