The Only Ultrasonic Game Call
The world's first ultrasonic, full-spectrum electronic game call. Tuned to reach 50 kHz — the frequencies coyote, bobcat & mountain lion actually hear — where ordinary callers stop at 12–18 kHz.
⌁ Major Winnings · Cumulative
$96,8453 Seasons · 7 Tournament Wins · Since Feb 2024
The Wimberleys.
My two sons and I have been hunting predator calling tournaments for 15+ years. In the past 14 years we had won one time in a small tournament. In February of 2024 I purchased a FREQ ultrasonic Game Call.
— Ken L. Wimberley · Junction, TX
⌁ The Wimberley Ledger · Every Win Since Feb 2024
⌁ The Tournament Board
2026
Field-Tested · Tournament-Proven.
Four more crews running the FREQ ultrasonic call. Early-2026 contest cash, plaques, and the heaviest coyote on record.
Texas · March 2026
West Texas Big Bobcat Contest 4th Place Bobcat
$17,020
Rough Country Big Gray Contest Heaviest Raccoon
$12,420
Texas · March 2026
West Texas Big Bobcat Contest Most Bobcats — 12
$8,560
Texas · February 2026
Los Cazadores Predator · Buchanan Dam Side Pot Heaviest Coyote — 38.4 lbs
New Mexico · 2026 Season
Eastern Navajo Nation Coyote Contest 1st Place — 6 Coyotes
⌁ Last Season's Board
2025
FREQ Earned Its Place.
The West Texas Big Bobcat Contest drew 763 teams in January and 812 in February — and FREQ-equipped crews kept landing on the leaderboard.
Texas · January 2025
West Texas Big Bobcat Contest Most Cats — 10
$7,630
Texas · January 2025
West Texas Big Bobcat Contest 2nd Place Big Bobcat — 28 lb 13 oz
$30,420
Texas · February 2025
West Texas Big Bobcat Contest Most Cats — 11
$8,120
West Texas Big Bobcat Contest Target Bobcat Weight — 18.4 lbs
$16,170
Real Hunts, Real Stories
Join a community of adventurers who have turned their hunting experiences into tales of triumph.
The FREQ Show celebrates the skill, dedication, and success of hunters like you, showcasing their incredible encounters and the game-changing power of the FREQ call. From close-range coyote encounters to unprecedented reactions from both predators and prey, each story and picture is a testament to the validity of a full spectrum ultrasonic sound and each hunters’ successful experience.
On a ranch where attracting coyotes had been challenging for a couple of years due to night hunting pressure, we achieved remarkable success with the FREQ. We called up 11 coyotes and killed 10, all within a 100-yard range. Despite their cautious nature, the FREQ proved to be a game-changer, as without it, we likely wouldn’t have killed more than two coyotes.
$1,999.00
Introducing FREQ™, the world’s first ultrasonic, full-spectrum electronic game call. It features two unique True Cast speakers, one of which produces lower frequency sound at the end of the spectrum that humans can hear while the other produces sound well into the ultrasonic end of the sound spectrum. Sound that humans cannot hear but that animals rely on to communicate. Sound recorded on state-of-the-art recording equipment designed specifically to capture both low and high (ultrasonic) frequency sound. Crafted by the renowned game calling expert, Gary Roberson, this revolutionary product is the result of years of meticulous research and development. Most importantly, it absolutely works!
Experience the Power of Ultrasonic Calling
FREQ is the first ultrasonic game call. FREQ produces ultrasonic sound that reaches up to 50 kHz compared to ordinary e-callers, which produce sound that reaches just 12-18 kHz.
Ultrasonic Revolution
Revolutionary Ultrasonic Technology makes FREQ™ the most effective and realistic electronic game call ever made.
For years, game calling expert, Gary Roberson (Co-Owner of FREQ), has observed animals silently communicating. Eventually, curiosity got the best of him and he decided to do some research. That’s when he discovered ultrasonic sound and the fact that virtually all animals hear much higher frequencies than humans. Humans can hear up to 20kHz, (an ability that diminishes with age). Compare this to a coyote, for example, that can hear up to 44 kHz. Or a bobcat that can hear up to 64 kHz! And rabbits emit sounds that are 50+ kHz.
The E-Caller Limitation
You’ve also, no doubt, noticed that predators and game animals are often very cautious when coming to a call and often hang up at a safe distance. This is not just their wary nature, it’s also because of the limitations of your e-caller.
But, Roberson discovered that you cannot simply transform existing recorded call sounds into full spectrum, ultrasonic call sounds. Instead, it meant using state-of-the-art recording equipment and recording all of the needed sounds. And then, building a speaker and electronic circuitry capable of playing ultrasonic sound. It meant totally reinventing electronic game calls. Which is exactly what Gary did! But it did not happen overnight. Finally, after several years of product development and field testing, FREQ™ Ultrasonic Game Calls was born!
Game-Changing Results
Stunning results: 50% to 100% more stand success, far more aggressive responses, fewer hang ups and warning barks.
Even Gary was shocked by the remarkable animal reaction he got to his new FREQ™ Ultrasonic Caller. His stand success more than doubled! The aggressiveness of the responses was immediately noticeable and off the charts! Animals came running in without hanging up. He almost never heard warning barks anymore. The range of the call was almost unbelievable, even with a crosswind. Birds like hawks, crows, and ravens that rarely came to ordinary e-call sounds frequently responded. And, most notably, he was able to harvest predators on property that had been heavily hunted and many of them were wily old, toothless critters that had been previously unkillable. But, when you think about it, this really shouldn’t come as a big surprise. For the first time ever, thanks to FREQ™, you can truly emulate the real sounds of both predator and prey. Before FREQ™, you were using only a partial range of their sound and nothing in the high frequency end of their range. To the animals you were really speaking a foreign language, or at least a broken language. Not anymore!
Technical Mastery
FREQ™ is capable of playing sounds up to 50kHz. This compared to other e-callers that all peak out at 12 to 18 kHz.
Recorded with ultrasonic recording equipment and played through exclusive TrueCast™ speakers, FREQ™ Ultrasonic Game Calls feature a wide array of real animal sounds. These are captured with special ultrasonic recording equipment and then played back through FREQ™’s two premium TrueCast™ speakers (one audible, one ultrasonic). This exclusive combination gives you full spectrum sound and the ability to call game with never-before-achieved realism.
Performance Guarantee
Buy and try a FREQ™ Ultrasonic Game Call for 30 days and if you don’t experience noticeably more successful stands, way more aggressive responses, far fewer hang-ups and warning barks, we’ll buy it back!
Learn More About Our Guarantee
