PIR Motion Sensor Activated Sound Player Speaker with USB Cable, Download Your own MP3 Audio Files to Play Speech, Music or Sound Effects (White)

I used these for a public art piece that needed motion-sensor sound and they worked perfectly. It was super easy to load music onto each one, and the motion sensor was exactly as sensitive as I needed it to be. They were much louder than I expected them to be, which was a plus since my installation was outside. I wrapped mine in adhesive vinyl to match the art, and also hopefully protect them outside, and, amazingly, that worked. They were outside for 6 months and worked to the very end. And the batteries never died! Great price, great product. Would definitely use again for public art.

I used this to remind my family to plug the electric car charger in when they come into the garage. It fixed the problem of forgetting to charge the car. Great product but you need to use a windows pc to format it and place your sound files on the device. If you do this you will not have any issues with the device becoming corrupt or having the old files still remaining on the device. The operation is also very simple. You just need to follow the instructions to set it up. Great sound and features....The price is also very reasonable. Will buy it again.

This holds many sounds and works great. It is set off by motion and makes my projects much more fun. Just conect to a computer and copy your sound files to it.

It is a simple and solid product perfect for Halloween decoration use cases. The material used is very cheap feeling and the audio quality was actually pretty decent. It can get very loud, I tested the medium loudness setting and could hear it from down the street in my neighborhood. The price should be around $10 to $15 at most, It's hard to justify $20 for something as cheap feeling as this. Overall definitely worth it, I had it play voice lines from G-man in the Half-Life game for my cardboard cutout of him, and it looked great! It can play a lot of sounds and for a lengthy amount of time, but you have to make sure they're small sizes, because it can only hold around 4mb. Which was actually quite enough for many long G-man monologues!

Unit is aok for the price but I think it could have included an active micro SD slot, and possibly a variable volume selection (only has 2 choices, loud and louder)