The Acme Silent Whistle 535 was pioneered by the Acme Whistle Company of Birmingham, England in 1935, where it is still manufactured to this day. This whistle has an adjustable pitch that is loud to dogs but is barely audible to humans. Effective up to 2 miles with ultrasonic frequencies...
The Acme Silent Whistle 535 was pioneered by the Acme Whistle Company of Birmingham, England in 1935, where it is still manufactured to this day. This whistle has an adjustable pitch that is loud to dogs but is barely audible to humans. Effective up to 2 miles with ultrasonic frequencies ranging from 5400-12800 Hertz. Constructed of stainless steel, it has a 4 in. chain with a cover at the end to protect the mouthpiece. Perfect for wild bird hunting in big countries or to have a distinctive whistle at a field trial or hunt test.
Garmin has released a new software update (v2.19) for the Garmin Alpha® T20 and TT25 dog tracking collars. This update addresses Wi-Fi connectivity issues to ensure smoother updates and more reliable performance when preparing your gear for the field.
Garmin has released a new software update (v8.05) for the Garmin Alpha® 300, Alpha® 300i, and Alpha® 200 Plus handhelds. This update addresses a key usability issue and ensures your Garmin dog tracking system continues to run reliably in the field.
The Garmin Alpha® XL handheld just got better with the release of software version v5.30, bringing new features, performance improvements, and time-saving tools designed for hunters, trainers, and dog owners who rely on Garmin GPS dog tracking systems in the field.