Acme 577 Thunderer Grip Whistle

The Acme 577 Thunderer is a heavy-duty, low-pitch referee and coach whistle designed for maximum audibility across large sports grounds. Engineered with a large sound chamber and a high-quality cork pea, it delivers a powerful 115 dBA output, ensuring your calls cut through extreme background noise and carry over long distances.

Equipped with a fully adjustable brass fingergrip, the Acme 577 offers a secure, comfortable fit for dynamic movement on the field. Perfect for soccer, football, rugby, hockey, basketball, and netball officials.

Key Features & Specifications:

Sound Level: 115 dBA (Deep, low-pitch tone)

Blow Rate Required: 4/5

Blow Sound: 2/5

Blow Tone: 5/5

Grip Type: Fully adjustable brass finger grip

Product Code: H2ACME577

DELIVERY/CLICK & COLLECT

Get your gear delivered fast, with shipping from just $9.99 on orders with 1–4 standard items. For larger or bulky products, delivery is still easy! Final costs are calculated at checkout based on your order size and
weight.

Want it sooner? Skip the wait with FREE Click & Collect—order online and pick up from your local store at no extra cost.

RETURNS

Shop with confidence—if your purchase isn’t right, you can return it for a full refund. Please note, exchanges are not available for
online orders.

To be eligible for a refund, items must be returned within 14 days of delivery, in new condition, with original tags and all packaging included. Items with damaged or missing packaging may not be accepted.

Return shipping costs are the responsibility of the customer, and we recommend using a trackable service for peace of mind. Once
your return is received and approved, your refund will be processed to your
original payment method (excluding original delivery fees).

Ready to start a return? Visit our Help Centre for easy step-by-step instructions.

BULKY ITEMS

This item is classified as bulky due to its size or weight, so additional shipping charges may apply. These larger items require special handling, but we’ll always calculate the most accurate delivery cost for you at
checkout. Some oversized products may only be available in selected SportsPower stores. To check availability, please contact your local store or use our store locator to find your nearest location.