Enhanced underwater breathing: Facilitates breathing underwater by using a water resistant seal and a snorkel setup with functional drain valves to help prevent choking. Comfortable training fit: Soft silicone mouthpiece and a pressure distributing head block provide extended comfort and a reliable oral seal, making it suitable for training for adults and youths during swimming and snorkeling. Breath control optimization: Designed to strengthen and optimize breathing technique and control during use. Safe snorkel design: Silicone mouthpiece integration helps prevent water backflow and enhances the anti-choking mechanism during snorkeling activities. Use scenarios: - In-pool training sessions for adults and teens, practicing breathing technique and endurance. - Introductory snorkeling practice to learn comfortable and controlled breathing while snorkeling. - Water safety or swimming classes that include underwater breathing exercises and drills.