{"product_id":"seven-sparta-deer-whistles-for-vehicles-8-piece-pack-black-wind-driven-ultrasonic-weatherproof-adhesive","title":"SEVEN SPARTA Deer Whistles for Vehicles — 8‑Piece Pack (Black) Wind‑Driven + Ultrasonic, Weatherproof Adhesive","description":"\u003cp\u003e\u003cstrong\u003eSeven Sparta 8 PCS Deer Whistles are adhesive-mounted vehicle whistles that produce ultrasonic and wind-driven sounds to help alert deer and reduce the chance of animal crossings.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese compact, weatherproof devices attach to bumpers or grilles and generate sound frequencies at driving speeds to get wildlife attention without human intervention. The kit combines both ultrasonic and wind-driven whistle designs, includes upgraded waterproof adhesive for lasting attachment, and is compatible with cars, trucks, SUVs, ATVs, and motorcycles. Installation is tool-free and the units can be removed for cleaning or repositioning.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these whistles work while I'm driving?\u003c\/h3\u003e\n\u003cp\u003eThe whistles rely on air moving past them at typical highway speeds to create audible and ultrasonic tones that animals can perceive. When the vehicle reaches roughly 35 MPH or faster, the wind-driven components begin producing sound; the ultrasonic elements amplify warning frequencies that carry toward roadside wildlife.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eActivates automatically when vehicle speed exceeds about 35 MPH.\u003c\/li\u003e\n  \u003cli\u003eCombination of wind whistle and ultrasonic whistle for layered frequencies.\u003c\/li\u003e\n  \u003cli\u003eSound projects forward from bumper or grille placement up to approximately 1\/4 mile.\u003c\/li\u003e\n  \u003cli\u003eWorks day or night without power or batteries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I mount and care for the Seven Sparta deer whistles?\u003c\/h3\u003e\n\u003cp\u003eMounting takes only a few minutes: peel the waterproof adhesive backing and press the base onto a clean, flat surface. The whistles detach from their bases so you can rinse them or remove them before an automated car wash without disturbing the adhesive base.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePeel-and-stick installation — no tools required.\u003c\/li\u003e\n  \u003cli\u003eUpgraded waterproof adhesive designed to withstand rain and car washes.\u003c\/li\u003e\n  \u003cli\u003eWhistles remove from base for cleaning or replacement.\u003c\/li\u003e\n  \u003cli\u003eRecommended two whistles per vehicle for optimal coverage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included and why are there multiple whistles in a pack?\u003c\/h3\u003e\n\u003cp\u003eThis 8-piece set supplies pairs of both ultrasonic and wind whistles so you can equip two vehicles or provide double protection on one vehicle. The mixed design creates different sound profiles that together improve the likelihood of alerting deer or other large animals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContains two ultrasonic whistles and two wind whistles per set, with additional units included for spare or multiple-vehicle use.\u003c\/li\u003e\n  \u003cli\u003eDouble-frequency approach increases audible range and variety of cues.\u003c\/li\u003e\n  \u003cli\u003eExtra pieces allow placement on both sides of a bumper or on multiple vehicles.\u003c\/li\u003e\n  \u003cli\u003eCompatible with cars, trucks, motorcycles, ATVs, and SUVs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Drivers who commute or travel on roads that pass through rural, wooded, or wildlife-prone areas and want a passive, low-effort device to help reduce animal-vehicle encounters. It’s a practical add-on for fleet vehicles, pickup trucks, SUV owners, motorcycle riders, and off-road enthusiasts looking for an inexpensive, no-electrical solution to increase roadside safety awareness.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these whistles need batteries or wiring?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — they are wind-driven and ultrasonic passive devices that operate without power or wiring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will the adhesive survive car washes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the upgraded waterproof adhesive is designed to remain attached through rain and professional car washes.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SEVEN SPARTA","offers":[{"title":"Default Title","offer_id":48086977478814,"sku":"B07TLKKCJZ","price":31.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/seven-sparta-front-view-mounted-on-bumper.jpg?v=1785911771","url":"https:\/\/northtrailauto.ca\/products\/seven-sparta-deer-whistles-for-vehicles-8-piece-pack-black-wind-driven-ultrasonic-weatherproof-adhesive","provider":"North Trail Auto","version":"1.0","type":"link"}