Còi Cứu Hộ Khẩn Cấp Dạng Dẹt Số 1

⚠ WARNING

This is an emergency whistle, not a toy. It produces an extremely loud sound that can potentially damage hearing. Always protect your ears and do not use it close to other people or animals.

I was searching for a new emergency whistle but couldn’t find one that met all of my requirements. So I decided to design and create my own. Here are its main advantages:

• Exceptionally loud – among the loudest whistles you’ll find in this size

• Ergonomic flat mouthpiece that provides a comfortable and secure lip seal

• Hands-free operation is possible

• Dual-tone design the dissonant intervall boosts the impression of loudness

• Quick and easy to print

This L1 Whistle is slightly quieter than my M4 Masterwhistle.
The advantage is the small formfactor though.

If you want extreme loudness, choose M4:

Version: F1 (flat #1)