ZHTElectronic Whistles for Referees with USB Charging, 3 Tone High Volume Emergency Whistle for Referee Coaches Teacher, Outdoor Camping Hiking Boating Safety Whistles with Lanyard

Life changing, literally. No more kids putting their mouth on my whistle!! Thank ya, Jesus!!! So loud and can use it for a quick lil attention grabber or to really annoy my students. Managing those recess soccer games became effortless and hopefully my voice will return since I snagged these bad boys. Also bought one for the brave soul who drives a bus at my school. Lives changed all around. And rechargeable?!?! Stop, it’s too much!!! Love, love, love.

I’m very happy with this electronic whistle! It met all my expectations, easy to use, loud enough, and perfect for my needs. The quality is great, and it feels sturdy. It also arrived quickly and was well-packaged. Highly recommend it for teachers, coaches, or anyone needing a reliable whistle without using their voice.

These are super easy to use. They have three volume options and three sounds to choose from. It also includes a flashlight, although I haven't used it much.I use these at track practice to start runners and get athletes' attention. It is easily heard at the other end of a football field and sounds just like a loud whistle, just without the spit.If you need a loud piercing noise, this your item!

I ref U9 - u19 soccer and this is very good and loud. Not sure what the light would be used for but the various tones are nice to be different from nearby fields and easy to use. I like that it is easy to recharge the battery and I have those spares for some of my flashlightsEdit- 4/25/21, this is a great whistle, I have done about ten games so far and it is very loud. Taking off one star due to yesterday I did a game in light rain and after half time it stopped working. The description does clearly state it is not waterproof. But since this is supposed to be used out doors and soccer is played in the rain, I hoped it would at least be light rain proof. It makes a barely audible squeak now. Light comes on, battery charges to 4.2 volts, on a 3.7 volt battery. It is just the speaker does not make a sound. Not sure if I got water in the speaker hole, or through one of the buttons, or where. I was wearing a rain jacket so it was mostly covered by the sleeve and only light rain for about 25 minutes. Reminds me to always carry a backup whistle just in case. But harder to use a real whistle and wear a mask as required by facility.

Loud and easy to use. Rechargeable and fun to call my daughter from 10 feet away!

I am thrilled about this new whistle; having previously owned an all-hand-squeeze button model, which worked quite well until it got damaged (my bad). - I looked into this new model, which is mostly sliding buttons, seems more durable.

Not loud enough to use outside

Muy buenos silbatos, su volumen se puede escuchar bastante bien a larga distancia.