Where's the new subsonic electronic caller?

[Danehunter]

Last year I was hearing that Burnham Bros. or other companies like FoxPro, were coming out with electronic callers that produce ultra low/ultra high frequencies there truly mimicked animal distress calls.
Where are they?

 

[VALKYRIETP]

New Ultrasonic Game Caller

Introducing FREQ™, the world’s first ultrasonic, full spectrum electronic game call. It operates like traditional e-callers but features two premium True Cast speakers, one low-frequency speaker that plays sounds at the end of the spectrum that humans can hear, and one ultrasonic speaker that...

burnhambrothers.com

T.P.

 

[misslebait]

burnhams has been delayed due to programing and getting the right speakers. Havent heard from foxpro yet. am very curious about this as i have played with some sounds that have other frequencies and they do seem to have some impact.