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Knowles booms - I Series

boom i-series Designed for customers who are looking for a noise canceling non-power element in robust platform with waterproofing options from 1m down to 10m (based on IP67 rating)

- Also available in Omni Directional
- Meets MIL-STD-810 standards

Plastic head design with metal flexible boom

- Available in 5.9mm down to 4.2mm diameter metal flexible boom

Military forces, Special Operations, Security and Police and other military communication headsets

- Mounted and unmounted ground forces, armor units

Designed for the BJ series elements

Model	Rating	Microphone element	Directivity	Boom Length Tip-To-Tip(mm)	Exit Wire Legth (mm)	Nominal Boom Dia. (mm)	Microphone configuration
FB-EI-30026-000	1m	BJ-28471-000 (150Ω Impedance)	Noise Canceling	212	140	5.4	2-WIRE
FB-EI-30426-000	1m	BJ-28486-000 (30Ω Impedance)	Noise Canceling	212	140	5.4	2-WIRE
FB-FI-30484-000	10m	BJ-28471-000 (15Ω Impedance)	Noise Canceling	212	140	6.0	2-WIRE