Mad Wave Electronic Whistle 125 dB for Coaches & Referees

Whether training indoors or outdoors, a coach often needs a clear and immediately recognizable signal. Thanks to its push-button operation, this device can be used with one hand while managing a workout, calling the group back or starting a new set.

Technical features

• manufacturer-declared volume: 125 dB ±5 dB, with internal metal tube;
• two selectable whistle tones plus SOS mode in Morse code;
• one-handed operation via push button;
• wrist strap for gripping, plus colored ring and lanyard as alternative carrying options;
• composition: 33% silicone, 33% ABS plastic, 33% stainless steel;
• power supply: AAA battery, purchased separately;
• one size; manufacturer item M1707 01 0 01W.

Differences compared to other models and brands

✅ No mouth contact: unlike a traditional whistle that is blown by mouth, the signal is activated using a push button. This is also practical when several coaches need to use the same device during a shift.
✅ Two selectable tones: unlike a signal device with only one sound, you can assign one tone to starts and the other, for example, to calls or corrections, without having to switch devices.
✅ SOS mode: the device can automatically emit the Morse code S-O-S, a feature that is not normally available on traditional neck whistles.
✅ Signal independent of your voice: the volume declared by the manufacturer provides a consistent audible signal that does not depend on the coach's voice or on vocal fatigue accumulated during a training session.

Who is it recommended for?

• coaches managing multiple lanes who need to call swimmers back, stop the group or start a set without having to raise their voice;
• water polo referees looking for a push-button signal, especially when their hands are already occupied with cards or a stopwatch;
• lifeguards or facility staff who need an audible poolside signal and a dedicated SOS mode;
• swimming instructors, at schools or in adult classes, when they need to quickly get the group's attention and give a clear stop signal.

Nuoto Mania's opinion

We recommend always keeping a spare AAA battery in your team's equipment bag and protecting the whistle from water, as it is not waterproof. If the device is used by several coaches, it is also useful to agree in advance on the meaning of the two tones, reserving the Morse mode for genuine emergencies. This helps prevent the SOS signal from being confused with a normal start or a training call.

FAQ

• Q: Is the battery included?
  A: No. The whistle requires an AAA battery, which must be purchased separately. We recommend keeping a spare battery in the team's equipment bag.
• Q: What exactly does SOS mode emit?
  A: When selected, the device automatically emits the Morse code S-O-S. It does not replace the facility's emergency procedures or an official alarm system.
• Q: Can I immerse it or use it in the shower?
  A: No. The manufacturer does not specify an IP rating or other waterproofing classification. It should therefore be treated as an electronic device intended for poolside use and kept dry and away from water or wet surfaces.
• Q: Is it suitable for water polo or only for lane swimming?
  A: The product is designed for sporting events in general and can be used by coaches and referees. In water polo, it can be useful poolside or on the bench, but it must not be used as a playing device in the water.
• Q: What are the wrist strap, ring and lanyard used for?
  A: The wrist strap makes it easier to hold and operate the whistle with one hand. The ring and lanyard provide alternative carrying options, such as wearing it around your neck or attaching it to your tracksuit.
• Q: Do the two tones have a predefined meaning, such as start and set?
  A: No. The manufacturer simply specifies that two selectable tones are available. The meaning of each tone can therefore be defined by the coach or team, while keeping them distinct from the Morse mode.