a lot of people are giving bad reviews this is mainly a novelty but it is very practicle as well it works great from my bedroom window a lot people complain on static and the distance well I fixed that quick by unplugging the headphones that came with it and plugging my Bose into it works fantastic now I really can hear conversations cars machines traffic and other animals and things even planes like a hundred feet in the air sound so close to the ground the headphones that came with it are good for my I pod extra pair of music headphones I strongly recommend trying noise canceling with these I was disappointed on one feature I assumed you could hear through walls with this at a distance don't even try it unless there windows open you'll be disappointed, however I took this to the lake and in deep water could hear straight down and heard a fish or just don't drop it but no this doesn't go through walls but air and water thumbs up over thumbs up love it :)

Pice of crap not worth a penny

Tried it out today an it is good for about 20 feet , this is nothing more then a kids toy . Not worth it .

Because of this fantastic device i live at my window in NYC listening to peoples conversations. i cant beehive this isn't illegal. oh, did i say people conversations, i meant hummingbirds ;)

ijust used this product for the first time, so far it works very well. I think my neighbors are dealing, so from my first experience, i'm sure i'll be able to gather some conversation to validate my suspicions.

NOT DISSAPOINTED. WORKS VERY WELL.

I purchased this device about 6 months ago.I use it while doing field research on the most elusive primate in the world, the Sasquatch or bigfoot as it is known. While doing research at Salt Fork state park in Ohio this past April I recorded my first wood knock. This device picked up the knock clearly from about 1/8 of a mile !

I received this yesterday and it is amazing! It's very easy to put together, very easy to hear sounds, and very easy to observe animals or other people. I also own the Alpen 10 x 25 monocular and it is just about the same as this device's monocular. So if you plan on getting one of these, just do it. You won't regret it.

Outdoors in the woods this device really shines as a means for identifying what is going on around you. I am not aware of anything of this performance for this price.

Just got this product today. It lives up to everything in the description. I can not believe how well it works for the money. Great for hunting,sporting events,bird watching,private investigations and so on. The jury is still out on product durability and battery life ( 9 volt ) but so far so good.