LEX L11 Howling Suppression Prevents Screeching Feedback Sound

The LEX L11 Mission Critical Handheld uses Howling Suppression technology to eliminate a screeching feedback sound when a device receiving audio is too close to the device transmitting the audio.
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LEX L11 Howling Suppression video transcript
00:27 Daniel: “Testing 1-2-3, testing 1-2-3, testing 1-2-3.” (Daniel’s voice is heard from the second LEX L11 device, along with high-pitched howling feedback.)
00:36 Daniel: “What you just heard was an acoustic feedback loop, and this occurs when you have multiple devices within close proximity of each other, and one of those devices should initiate a push-to-talk.”
00:45 Daniel: “Not only is this howling and screeching sound an annoyance, but it can also impede your mission critical communications.”
00:52 Daniel: “Fortunately, the LEX L11 has built-in howling-suppression technology, which virtually eliminates any howling sound.”
01:00 Daniel: “To access this feature, quickly swipe down from the menu into the Quick Menu Guide, and select Howling Suppression.”
01:08 Daniel: “Testing 1-2-3, testing 1-2-3, testing 1-2-3.” (Daniel’s voice is heard from the second LEX L11 device, but without howling feedback noise.)