sosWhistler

Một Whistle với một lựa chọn hợp khẩn cấp.Sáu vụ nổ, phút im lặng, lặp lại.

A simple distress whistle. Button press for a single whistle blast.

Button press for a continuous repeating blast.

Or button press the six blast option

which is the Hill walking distress message,

six blasts waits a minute, then repeats.

So if you're caught out in the great outdoors, in the dark, mist or fog, you'v got this app to attract someones attention.