The product features a built-in inductor and magnetic switch. Equipped with a built-in buzzer that emits 8 distinct audible tones. Designed to be worn around a dog's neck, it produces a short beep when the dog moves quickly. When the dog slows down or stops, indicating it has located prey, the device emits a continuous beep. Each unique beep pattern corresponds to a specific dog, allowing a hunter to track up to eight dogs simultaneously. Features: - Built-in inductor with magnetic switch - Built-in buzzer produces 8 different audible signals - Emits a short beep during fast movement - Emits a continuous beep when the dog slows or stops - Supports tracking of up to 8 dogs using distinct sound patterns Specifications: - Condition: - Material: Plastic - Color: Yellow - Size: Approx. 12 x 11 x 3 cm / 4.7 x 4.3 x 1.2 in - Weight: Approx. 295 g Package List: - 1 x Beeper Collar - 1 x Training Collar - 1 x Screwdriver - 1 x Magnetic Switch