1 RF Transmitter and 6 Receivers

I use these in keys, wallet, phone and other things. Very handy!! Works well. I write a list iof what tracker goes with what item

Took about 5-10 minutes to get all the batteries in them and test them all. Every one of them work perfectly. You do need 2 AAA batteries. The Alarm doesn't hurt your ears but its loud. They are bigger than I expected, about the size of key FOB for the car. I used the supplied Velcro for sticking to things, had to unstick one to move it and it still grabbed very well. They fit nicely on a key ring. Range seems good, worked fine from my living room, down a hallway into the bedroom with the door closed.For people that say cheaply made, I disagree, for the price it's a great deal. Would you rather it was metal? Will pay for itself the first time I misplace one of 6 items and I hear it Beep. Or if the power goes out I can find my Black flashlight in the dark.I didn't get anything for this review, just tickled with my purchase.UPDATE after 6 weeks. I never lose my keys but it happened. Searched the house and basement with this in hand, no beep. Remembered going out to shed yesterday. I walked out there and stepped right over them in the grass. Pushed the button and there they were. Don't know if I would have found them without this before I mowed the grass. I am so thankful I purchased this item. It is worth it's weight in Gold! Only buy this item if you hate pain and pressure!

It works well with the ones we put on items, although there is one of the sensor chips that does not work, just grateful we didn’t need the last one, but it would be nice if we did. It is loud enough for hear and the light definitely helps! Thank you

This really help me whenever I don’t remember where I put my keys, cellphones, eyeglass, wallet..Just hear it’s sound and you can easily locate the missing item. Highly recommend !

Very easy to work with and I like that there are 6 receivers but one of the receivers stopped working. Changed the battery and still doesn't work. Probably going to return. Of course we figured it out the hard way when we lost the remote. Frustrating! The other receivers work well and seem loud. For reference we have only had these installed for about a week

I have needed this to work on two occasions since I purchased it. It didn't work either time because the battery in the unit attached to the key was dead. I'm not sure how long a battery lasts but less than a year. I would not buy this again because I can't depend on it.

I really like these and they've helped but they are large and when I had on my key ring broke the first day that I used it I had to tape it which is a little annoying I think the only thing I don't like about these is that they're kind of big so they're hard to put on the back of your phone or remote controls but hey they worked and they have helped so I give them a three only because I wish they were a little louder I wish they were a little smaller.I also wish they were made a little stronger the one that I put on my keyring broke the very first day.

muy buenos