Deer+whistles,+subsonic+22+shells+and+grass+sound

Deer Whistlers

Hornet whistle The Hornet is your best protection against costly and deadly animal related accidents. Using the latest military technology from the field of high pitched, directional sonic bombardment, the Hornet's precision turned sonic generator alerts deer and other animals of your approach well before they can see or hear your vehicle. Proprietary wave variance tuning enables the sonic impulse to carry long distances. The Hornet is endorsed by major insurance companies and is used by police and emergency vehicles nationwide with millions of proven road miles. Proven effective at any speed, the Hornet is electronically powered and does not rely on wind or air flow.

The Hornet Deer Avoidance Device is a precision tuned sonic generator which produces a high pitched, directional sonic wave. When this wave is reflected from the road surface of a moving vehicle, a virtual sonic echo effect is produced. This sonic wave has proven its ability to alert deer and most other animals to approaching vehicles with sufficient warning to avoid costly accidents. The use of the Hornet, along with driver awareness, has been proven to reduce the risk of animal/vehicle collision by more than 70%. The electronically produced sonic wave is effective at any vehicle speed. The Hornet Deer Avoidance Device is your best protection from vehicle damage and deadly animal related accidents.

Regular air whistle just gets the wind go through it as you drive, it works like a normal whistle with air passong through but it makes a weird high pitch sound that scares deer and other animals off.

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Subsonic .22 Shells The lowly .22 rimfire, bolt-action rifle fitted with a modern suppressor and subsonic ammunition wins the contest with sound pressure levels (SPL’s) hovering around 110 dB depending on the ammunition. A regular .22 shell has an average noise of 140 dB Action noise is nothing more than the fall of the firing pin, the long barrel helps mitigate gas pressure and temperature and the suppressor is left to peel off the remaining muzzle signature. The shot is effectively reduced to the noise of the firing pin drop, which is as quiet as it gets. With this class of weapon, bullet impact is the dominant sound associated with firing a shot. From behind the butt, the experience of squeezing off a shot is surreal. Without any type of hearing protection, all the shooter hears is a soft “click” as the firing pin crushes the case rim … and then the distant thud of the bullet hitting home. The only real variable in this recipe is ammunition. And as most shooters are aware, not all .22 ammunition is created equal. This goes doubly so for subsonic .22 ammunition. []

Grass Sound The grass vibrates, which causes the air around it to vibrate. These vibrations are carried through the air to your ears, where you hear them as sound. []