For competitive swim coaches in the U.S., having reliable, waterproof communication gear is non-negotiable. Whether you're training elite athletes or running youth programs, equipment like the Retekess TT120 IP68 Waterproof Tour Guide System ensures every instruction is heard—above and below the water. This blog breaks down why the TT120 is the top choice for American swim coaches, with detailed specs, real-world applications, and compliance with competitive swim training standards. ...