Wireless communications for Multiplace chamber
I am looking for a wireless headset system for our communications system. Currently we are using a wired headset for the inside observer in our multiplace chamber. The chamber operator is also wired.
Eartec has a system that we have tried but has some minor issues.
The problem with everything I have seen is that it has Lithium batteries and when I find one that will work it is way out of budget.
What is everybody out there using for wireless if any?