Trident Acou-stik (Acoustic U/W Rattler)

The Acou-Stick Underwater Noise Maker is a patented communication tool trusted by divers, dive masters, and scuba instructors around the world. Designed for quick and effective underwater signalling, it allows you to get your dive buddy’s attention instantly with a simple shake.

Capable of projecting sound up to 100 ft (30 metres), it provides a reliable and efficient way to communicate underwater without the need for batteries or maintenance. Unlike basic rattling devices, the Acou-Stick remains completely silent while swimming or stored in your gear, activating only when you choose to use it.

Key Features:

• Patented underwater communication technology
• Effective sound transmission up to 100 ft (30 m)
• No batteries or maintenance required
• Silent during swimming and storage
• Simple shake activation for instant signalling
• Trusted by divers, dive masters, and instructors worldwide