Learning Resources (UK Direct Account) LER3776 Learning Resources Lights and Sounds Family Night Game Show Classroom Accessories Siren Buzzer Laser and Charge Set of 4 Ages 3+ Multicoloured

The product received isn’t the brand advertised. This is not honest However it is 4 buzzers.

احببته لكن جرس واحد صوته واطي

Soy profesor de inglés en un centro de secundaria y además doy clases a adultos y he de decir que estos pulsadores son geniales. A todos les encanta. Lo usamos normalmente para repasar antes de un examen y favorece muchísimo la participación. Antes lo hacíamos levantando la mano o con cualquier otro tipo de movimiento y no funcionaba tan bien. PULSADORES: Son cuatro pulsadores (a pilas). Cada uno tiene un sonido y un color distinto. Aunque parezca una tontería, esto anima todavía más, ya que los estudiantes quieren probar todos. ¿CÓMO LOS USO?: Cada uno lo puede usar como quiera. Yo lo uso, sobre todo, para algunas actividades de repaso y cuando hacemos alguna actividad en equipo. Normalmente el alumno pulsa el pulsador cuando sabe la respuesta o ha acabado la actividad. También la uso con adultos para juegos tipo "tabú". De manera que cuando alguien dice algo que no debe, el encargado del pulsador, se encarga de hacer que suene. Hay muchas posibilidades realmente. CONCLUSIÓN: Es una herramienta genial para ayudar a aumentar la participación y motivación del alumno y para animar un poco la clase. El precio está bastante bien y, por ponerle alguna pega, lo único sería que lleva pilas y hubiera sido más cómodo si funcionara con batería. Aunque realmente las pilas duran años, así que no supone un gasto extra. Espero haberos ayudado con la opinión.

Once assembled, the buzzers are cool and useful. They do NOT come with batteries and, in order to insert said batteries, one must u screw teeny tiny nails. Really impractical!

Den ena Buzzern fungerar inte

I bought these to be used when I'm training Pet First Aid. The idea is that at the end of the course we have a quiz. It's more fun to have people compete and try and win, rather than just handing out a test for them to fill in. The problem with the type of quiz we play is that there is a lot of shouting and noise (otherwise it's boring). I was a little worried that these buzzers wouldn't be heard over all the noise, but they have actually done a really great job. They don't weigh very much, yet they feel solid and take a fair pounding from crazed adults. They light up when pressed, and they each have their own distinct noise. All in all, they are exactly what you'd want. Just pop in a couple of AAA batteries (I've used rechargeables that I also bought from Amazon) and away you go. If you were playing with kids, or even training adults like me, they are a good buy. There are some other options out there with different colours and noises but I can't rate them, only the Red, Yellow, Blue and Green ones that I picked up.

I'm repurposing these and using them for a dog game that I'm building. I was looking for large buttons (momentary switches) to interface to my microcontroller (atTiny2313), but these were a bonus. All I really needed was the switch, but with the LEDS (which I was going to light up a different way) and with the sounds, this is great! I opened up the button and all 4 are actually identical except for the LED color (as well as the plastic button color). Each of these buttons plays all 4 sounds, it just depends on which pin is jumped on the board. The board is large enough where you can tap into the button (+ voltage), turn on the lights, and trigger the sounds. While this device works on 3V battery, I was able to successfully use it on 5V as well. I did put a small resistor inline to bump that down a bit just in case I was near the limits, so I'm at about 4.5 and everything looks normal. While the LEDs do have resistors on the board, they are of a low value (~50 ohm depending on the color), as it's expecting 3V. So on my trigger line I added a couple hundred more ohms. I know this review is outside the scope of just about anybody buying these, but in case you're a DIYer, these would work great for any microcontroller (e.g. arduino, raspberry pi, ATMEL etc). I'll get a video of what it will do once I'm done.