UNIWA Electronic Whistle with USB Charging, 3 Tone & 3 High Volume Hand Emergency Whistle for Referee Coaches Teacher, Outdoor Sport Game Camping Safety Electric Whistle with Lanyard

I use this for my Cross Country team. It's super loud and saves me spitting all over a classic whistle. It has 3 sound settings and 3 volumes. It has a small flashlight, which I don't find use for but is a nice addition. I've had a different digital whistle that had a unique charge port. This one uses USB-C which I have everywhere, making this so much more convenient to charge. I've dropped it a few times and you can't even tell. This is SO convenient for things like intervals and sprints. I'll be using it for the foreseeable future.

I purchased this to call our dogs when they wander off. It's loud enough to be heard even at the lowest level! Works great!

This is a good whistle so far. Cool that there's a setting for loudness!

Other than that, does its job.

The downside of any whistle is that it is much closer to the coach or teacher's head than it is to the player or student's head. This electric whistle improves that situation. It can be held at arms length, rather than needing to be in your mouth. This change in relative distance changes the relative volume, and this eliminated ear ringing after the game. The device is easy to use. It has four volume levels, and level one is enough for most situations. There are a few different sounds, ranging from a whistle to a buzzer. The device has never run out of batteries. It appears well built and has survived several drops from waist height. Finally, the electronic whistle is faster than a mouth whistle because it can be activated without the need to take a full breath of air.

Good product and $, fast shipping. It;s really noisy

Love this whistle. I have an electronic Fox40 whistle, but it didn’t last long. Waiting to see how long does this whistle last me. So dar, more features and louder than electronic Fox40.

Perfect for the PE teacher that is sick of blowing a whistle!!

So far so good. Charged quickly and works great. It's LOUD!

Excelente producto. Calidad y precio.

Muito bom.

Very convenient product. !!!

The only positive thing I can say about the UNIWA electronic whistle is that it's loud. As other reviewers have noted, it does NOT sound like a whistle -- it sounds like a smoke alarm. I accidentally dropped it onto my carpeted floor, from a distance of less than a meter, which caused the battery cover to pop off and the battery to fall out. It was a struggle to get the battery back into place. Be forewarned that the rechargeable battery is NOT a relatively easy to replace 18650 Li-Ion cell. Put simply, the built quality of the UNIWA electronic whistle is mediocre, if not poor. I cannot recommend this item.