50mm Keychain Emergency Whistle

A 50mm emergency whistle designed for keychain attachment, featuring an internal spherical chamber to produce a warbling acoustic output. The main body measures 18mm in vertical profile and incorporates a 12mm diameter cavity localized directly behind the airstream slot to direct airflow and actuate the internal rattle mechanism.

Technical Specifications

• Overall Length: 50mm
• Overall Height: 18mm
• Acoustic Chamber: 12mm diameter spherical internal cavity
• Mechanism: Integrated pea chamber for warbling sound profile
• Mounting interface: Structural loop suitable for standard keychain rings