UNIWAElectronic Whistle, Battery Operated Whistle Adjustable 3 Different Loud Whistle Sounds with Lanyard Handheld Electronic Whistles for Referees Volleyball Coaches Teacher, Soccer Sports Whistle

I got two of these for cross country practice for myself and the assistant coach. I have to say, I wasn't expecting it to be that loud, but it DEFINITELY gets everyone's attention. Using it indoors will really leave a little ringing in your ears. I started pointing the end of it to my leg to help reduce the sound indoors. Outdoors, the sound carries a pretty good distance. Having three different whistle sounds was a good idea, but at the volume level it's hard to discern any difference when you are holding it.

I needed a gift for my boy's coach and decided to get this. At first I was skeptical but as soon as it arrived, I couldn't help but play with it. The sound is very loud!!! It scared my neighbors. There are 3 different tones to choose from. It's easy to hold but the string is perfect to keep around your neck. I am not sure on the battery life as this was a gift but it's easy to use and seems quite durable. A good choice!

This thing is amazing. I use it for classroom mgmt. I’ve heard other ones that some teachers have and nothing is like this one.

I really like this whistle. It is very easy to use and comes with batteries. I needed on so that I could ref at my volleyball tournaments. I absolutely love how loud it is. The battery has held up very well and is very light. I also like the shape because it is very easy to hold and the strap makes it very good. One thing I don’t like is the actual tones of the whistle. I feel as the one that best sounds like a real whistle is tone 1. I do recommend this one because I am very pleased with it.

Loud and easy to use. Will work perfect for recess duty.

got it for gift for soccer coach who teaches our kids. he loved it. unfortunately, no whistles allowed during games, but practices are ok.

It is crystal clear and loud, with a great battery life.

It seems to be cheaply made but serves a purpose for what I want it for. The whistle is loud and has 3 different tones.