This Dual Impedance Selector is an adapter that is Helmet Mounted towards the back of the helmet and allows the user to select the proper impedance between high (civilian) or low (military) for pilots who fly both types of helicopters. A military M-87 microphone is required to use this system (sold separately.
Please note we do our best to keep adequate stock so your order is ready to ship immediately, however if we do not have your size or colour in stock it may take up to a few weeks to order in the product for you, so please be aware there may be a small wait time.
You can contact us via our contact page to check on stock quantities before purchasing if concerned about the wait time.
If off the shelf items, for example gloves, are the incorrect size or colour, we can exchange these pending the following conditions:
Conditions of Returns:
Please note there will be a restocking charge for products being returned due to change of mind only
Freight Charges May ApplyReturns Form: The return form must be sent back in the package with the goods when returning to Sisley Clothing Australia.