Product Description
The Acou-Stick Underwater Noise Maker is patented technology used by Divers, Dive Masters, and Scuba Instructors worldwide. Get your dive buddy's attention fast and easily - just a simple shake sends sound up to 100 feet! No batteries or maintenance required! Unlike simple "rattling" devices, the Acou-Stick Professional Underwater Communicator stays silent while swimming and when stowed in dive gear or luggage. It only works when you want it to!
