The Liberator® IV is the first multi-mode, dual fuel single communications headset on the market. It incorporates the same features of the Liberator® V but in a single communications channel package. 100% US designed and manufactured tactical headset, it features a first of its kind Dual Fuel system allowing it to run on either two AAA or one CR123. The headset offers operational modes for all high noise situations. The Liberator® IV can protect against impulse noise, like gun fire, and steady state noise, like operating on a helicopter. It is the first headset with user audio profiles modifiable with simple keystrokes on the headset. The Liberator IV is an advanced single channel headset system utilizing the newly designed multi-mode Earcup. Law enforcement and military users alike can confidently utilize this robust product in any tactical situation. This system is RF and EMI shielded to prevent bleed-through from various radio frequency sources, including those that are self-generated. CHECK OUT OUR OTHER ITEMS!