Dual Audio Whistle in Aluminum Alloy for Survival and Outdoor Activities

Double tube blast design:
1.HIGH FREQUENCY PENETRATION: Designed to produce high frequency sound with powerful penetration.
2.120dB WIDE RANGE COVERAGE: Provides up to 120dB of volume, capable of covering a wide area.
Aircraft aluminum alloy material:
1.Hard anodized treatment: hard anodized process is used to enhance the wear and corrosion resistance of the material.
2. Waterproof and corrosion resistant: The treated aluminum alloy material has good waterproof performance and corrosion resistance.
One-piece molding:
1. Ball-less design: Adopt ball-less design to reduce the friction and wear between parts.
2.Water inlet can blow dust: Even if water inlet, dust and water can be removed by blowing and other means to keep the normal operation of the equipment.