Molten Dolfin B Basketball Whistle RA0080, grey, with lanyard – professional model for coaches and referees

The Molten Dolfin B RA0080 whistle is a professional model designed specifically for basketball, offering high sound clarity and an immediate acoustic response. Created by Molten Japan, the whistle features a patented design inspired by the streamlined shape of a dolphin. The two “fin-like” surfaces on the upper and lower parts of the whistle help amplify and direct the sound, ensuring a powerful and penetrating signal that can be heard clearly in a crowded arena.

The Dolfin B is made of high-density polycarbonate, reinforced with a central vertical rib that increases rigidity and long-term durability. Despite its solid construction, the whistle is extremely lightweight at only 9 grams, making it comfortable to hold in the mouth for extended periods—essential for referees and coaches who require constant readiness.

The acoustic output reaches 124 dB at 10 cm, with high frequencies of 4.10 kHz and 3.74 kHz distributed across four octaves. This sound profile ensures instant recognition and cuts through ambient noise, music, or loud cheering. For this reason, the Dolfin B is widely used in local, national, and international competitions and is officially recommended by FIBA.

The whistle is manufactured in Japan to Molten’s strict quality standards and comes individually packed with a lanyard included, ready for immediate use.

Advantages 

• Very powerful sound, 124 dB, ideal for noisy sports halls

• High, sharp frequencies easily recognized by players and officials

• Patented Molten Japan design inspired by a dolphin silhouette

• Excellent sound projection across large indoor courts

• Durable, reinforced polycarbonate body

• Ultra-lightweight construction for comfortable long-term use

• Officially recommended by FIBA

• Includes lanyard

• Designed specifically for basketball referees and coaches

Usage

The Molten Dolfin B RA0080 whistle is intended for referees and basketball coaches who require a powerful, precise, and immediate acoustic signal during training or official matches. Suitable for:

• Official basketball competitions

• Professional, amateur, and youth training sessions

• Large indoor arenas with strong echo

• Situations that require rapid, clear, and authoritative sound signals

The whistle sits firmly in the mouth and responds instantly to airflow, ensuring consistent performance.

Technical Specifications:

• Model: Molten Dolfin B RA0080

• Sport: Basketball (indoor)

• Material: polycarbonate with central reinforcement

• Sound output: 124 dB / 10 cm

• Frequencies: 4.10 kHz and 3.74 kHz

• Acoustic profile: 4 octaves

• Colour: grey

• Dimensions: 17.5 × 61 × 27.5 mm

• Weight: 9 g

• Origin: Made in Japan

• Patent: Molten patented design

• Accessories: lanyard included

• Recommendation: FIBA