ITW Marine 哨子是經典 Marine 哨子的升級版，具有改進的人體工學設計

特點
• 無腐蝕性、產生雙聲調、可浮於水面
• 包括一個固定夾，方便固定在腰帶或背包上
• 可與掛繩一起使用或直接夾在您的裝備上，提供 106 分貝的平均聲級

The ITW Marine Whistle is an upgraded version of classic Marine Whistle, featuring improved ergonomics

Feature
‧ Non-corrosive, produces dual tones, and can float on water
‧ Includes a retainer clip for convenient attachment to a belt or backpack
‧ Can be used with a lanyard or clipped directly to your gear, offering an average sound level of 106 dB