- Duo-Alert Air Powered Surface & Underwater (U/W) Signaling Device delivers reliable communication in both underwater and surface environments. - Exceptional sound output: Underwater volume ranges from approximately 115-125 dB, and surface volume is between 125-130 dB, ensuring you are heard in critical situations. - Designed for safety: The device is extremely loud; it's crucial to keep it away from your ears when activated to prevent hearing damage. - Easy maintenance: After each dive, remember to pressurize and activate the device to expel any trapped water. Rinse with fresh water post-use to maintain performance. Key Features: - Functionality: Acts as a signaling device for divers and water sports enthusiasts, enhancing safety during excursions. - Compatibility: Suitable for professional divers, recreational snorkelers, and marine rescue teams. - Size & Material: Compact design for easy storage; built with durable materials for reliable performance in diverse aquatic environments. Use Scenarios: 1. Ideal for scuba divers to signal surface support teams during emergencies, ensuring quick response. 2. Essential for snorkeling trips: alert nearby boat operators or fellow snorkelers when in distress. 3. Useful in marine rescue operations to signal for help or to communicate between rescuers in challenging conditions. This signaling device provides peace of mind for underwater activities, enhancing safety and communication in any aquatic adventure.