ISI-SEHM-1
EAR MOUNTED MICROPHONES
These stereo ear mounted microphones are available with different types of cardioid (uni-directional), and omni-directonal microphone elements to choose from, including Audio Technica series. The microphone assembly is constructed with a set of flexible rubber coated gooseneck bodies designed to be worn and conform to each individuals ears, making them extremely comfortable to wear as well as offering the ability to aim the mics very accurately at the sound source. These mics are excellent when choosing cardioid microphones to reduce background or crowd noise, as well as omni's to produce excellent binaural recordings. There is an optional mount being designed (not yet available) to mount the mics on a stand as well. The cable exiting the mic body is 1 meter in length and is terminated with a right angle stereo mini plug. The Premium Audio Technica slimline series available are comparable to the AT853's, but much smaller.
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View with standard cardioid |

View with windscreens installed |

Close up view of standard cardioid |
Microphones to choose from and Specifications:
Standard Low Sensitivity Omni-Directional:
- Signal To Noise Ratio: >58 dB, 1 kHz at 1 Pa
- Dynamic Range: 76dB without battery module, 91dB with battery module
- Frequency Response: 20 - 20,000 Hz
- Open Circuit Sensitivity: -42 dB (5.6 mV) re 1V at 1 Pa
- Maximum Input Sound Level: 105 dB SPL, 1 kHz at 1% T.H.D. (120dB with battery module)
Standard High Sensitivity Omni-Directional (+7 dB):
- Signal To Noise Ratio: >62 dB, 1 kHz at 1 Pa
- Dynamic Range: 80dB without battery module, 95dB with battery module
- Frequency Response: 20 - 20,000 Hz
- Open Circuit Sensitivity: -35 dB (5.6 mV) re 1V at 1 Pa
- Maximum Input Sound Level: 105 dB SPL, 1 kHz at 1% T.H.D. (120dB with battery module)
Deluxe Audio Technica Miniature Omni-Directional (AT350):
- Signal To Noise Ratio: 60 dB, 1 kHz at 1 Pa
- Dynamic Range: 81dB without battery module, 96dB with battery module
- Frequency Response: 20- 20,000 Hz
Open Circuit Sensitivity: -42 dB (5.6 mV) re 1V at 1 Pa
- Maximum Input Sound Level: 110 dB SPL, 1 kHz at 1% T.H.D. (125dB when powered by our battery module)
Standard Cardioid:
- Signal To Noise Ratio: >58 dB, 1 kHz at 1 Pa
- Dynamic Range: 76dB without battery module, 91dB with battery module
- Frequency Response: 80- 18,000 Hz
- Open Circuit Sensitivity: -51 dB (5.6 mV) re 1V at 1 Pa
- Maximum Input Sound Level: 105 dB SPL, 1 kHz at 1% T.H.D. (120dB with battery module)
Deluxe Cardioid:
- Signal To Noise Ratio: >58 dB, 1 kHz at 1 Pa
- Dynamic Range: 76dB without battery module, 91dB with battery module
- Frequency Response: 50 - 20,000 Hz
- Open Circuit Sensitivity: -45 dB (5.6 mV) re 1V at 1 Pa
- Maximum Input Sound Level: 105 dB SPL, 1 kHz at 1% T.H.D. (120dB when powered by our battery module)
Deluxe Audio Technica Cardioid (AT831):
- Signal To Noise Ratio: >65 dB, 1 kHz at 1 Pa
- Dynamic Range: 87dB without battery module, 102dB with battery module
- Frequency Response: 40 - 20,000 Hz
- Open Circuit Sensitivity: -42 dB (5.6 mV) re 1V at 1 Pa
- Maximum Input Sound Level: 116 dB SPL, 1 kHz at 1% T.H.D. (131dB when powered by our battery module)
Premium Audio Technica Slimline Omni-Directional:
- Signal To Noise Ratio: >58 dB, 1 kHz at 1 Pa
- Dynamic Range: 83dB without battery module, 98dB with battery module
- Frequency Response: 20 - 20,000 Hz
- Open Circuit Sensitivity: -40 dB (5.6 mV) re 1V at 1 Pa
- Maximum Input Sound Level:
- Maximum Input Sound Level: 110 dB SPL, 1 kHz at 1% T.H.D. (125dB when powered by our battery module)
Premium Audio Technica Slimline Sub-Cardioid:
- Signal To Noise Ratio: >58 dB, 1 kHz at 1 Pa
- Dynamic Range: 83dB without battery module, 98dB with battery module
- Frequency Response: 20 - 20,000 Hz
- Open Circuit Sensitivity: -42 dB (5.6 mV) re 1V at 1 Pa
- Maximum Input Sound Level: 110 dB SPL, 1 kHz at 1% T.H.D. (125dB when powered by our battery module)
Premium Audio Technica Slimline Cardioid:
- Signal To Noise Ratio: >65 dB, 1 kHz at 1 Pa
- Dynamic Range: 83dB without battery module, 98dB with battery module
- Frequency Response: 30 - 20,000 Hz
- Open Circuit Sensitivity: -40 dB (5.6 mV) re 1V at 1 Pa
- Maximum Input Sound Level: 110 dB SPL, 1 kHz at 1% T.H.D. (125dB when powered by our battery module)
Premium Audio Technica Slimline Hyper-Cardioid:
- Signal To Noise Ratio: >58 dB, 1 kHz at 1 Pa
- Dynamic Range: 83dB without battery module, 98dB with battery module
- Frequency Response: 30 - 20,000 Hz
- Open Circuit Sensitivity: -30 dB (5.6 mV) re 1V at 1 Pa
- Maximum Input Sound Level: 110 dB SPL, 1 kHz at 1% T.H.D. (125dB when powered by our battery module)
Features:
- High quality microphones available with wide frequency response
- Excellent stereo image, or binaural recordings
- Setup is quick, and easy to use
- Extremely durable, rubber coated metal gooseneck
- Available with many different mics to choose from
- Excellent for cardioids
- Can be very stealthy
- Extremely comfortable when wearing
- Very light weight and portable
- Provides excellent performance Vs cost
Warranty Information