Whistle Keychain – 100 dB (Compact Design)

This compact whistle is both functional and portable, producing a loud sound of up to 100 dB while being small enough to carry on your keys, backpack, or lanyard. It’s a great companion for emergencies, hiking, camping, or sports events.

The design is optimized for 3D printing — no supports are needed, and it can be printed in about 6 minutes. Works best with PLA or PETG for a sturdy and reliable build.

Specifications:

Sound Level: Up to 100 dB

Material: PLA or PETG recommended for strength

Print Settings:

Layer height: 0.2 mm

Infill: 100% (for best sound performance)

No supports required

Design Features:

Compact and lightweight

Hole for keyring or lanyard

Prints quickly and easily