Features:

• Producing sound with the 4 chamber design to achieve more than 130 decibels, equivalent to blowing 4 whistles at once. 
• The product includes a lanyard for use as a keychain.
• Enhancing grip with hexagonal surface design
  
• Small and lightweight, excellent portability
• PETG material is extremely UV resistant and chemical resistant.

Use with caution to avoid damaging your hearing and the people around you.

Specifications:

• Material: PETG 
• Color: Black
• Dimension: 45x22x15mm
• Weight: About 10g