How far away can the sound be heard
259348
They're very loud. We use a set of 4 to cover an 8000 sf daycare facility with two separate buildings, all keyed to a single panic button, A second location used three of them set up the same way. We use them to trigger emergency drills. They can be heard without difficulty throughout the property, and outside as well. They should be used indoors only, and connected to AC power although they have battery back up power as well. Not sure about the other reviews stating the units aren't loud enough. They emit a piercing wail that you want to get away from as quickly as possible. They would seem to be a sufficient deterrent to an intruder. They're very loud. We use a set of 4 to cover an 8000 sf daycare facility with two separate buildings, all keyed to a single panic button, A second location used three of them set up the same way. We use them to trigger emergency drills. They can be heard without difficulty throughout the property, and outside as well. They should be used indoors only, and connected to AC power although they have battery back up power as well. Not sure about the other reviews stating the units aren't loud enough. They emit a piercing wail that you want to get away from as quickly as possible. They would... » Read More They're very loud. We use a set of 4 to cover an 8000 sf daycare facility with two separate buildings, all keyed to a single panic button, A second location used three of them set up the same way. We use them to trigger emergency drills. They can be heard without difficulty throughout the property, and outside as well. They should be used indoors only, and connected to AC power although they have battery back up power as well. Not sure about the other reviews stating the units aren't loud enough. They emit a piercing wail that you want to get away from as quickly as possible. They would seem to be a sufficient deterrent to an intruder. « Show Less
259349
Apparently you are determined to WASTE YOUR MONEY. Since the system is total junk and does not work, the sound is not likely to be heard at all. Now if you would prefer to believe that this piece of garbage has any possibility of actually deterring a burglar, then you might as well also make believe it is as loud as you want it to be. The only way to make this system act in any manner as a deterrent would be to leave in in the box, leave that box on the floor, and then hope that your prospective burglar trips over the box.
885598
I have got off my bike and walk 10 feet away and I still hear the music. I have never tested it for range, like a 2 way radio, but it easily covers an area within 10 feet.
1487572
I'm about 40 feet away and I have the volume up only half way. I'm in a store and it's pretty quiet. It's very loud plus you can connect extra speakers.
2008909
Sorry, but I don't really know. I plan to try mine for outdoor noises this summer in various locations. It probably will pick up not too distant noises. The times I have used it. It has been inside.
1533634
Too far away then would be of practical use. If the noise bothers you then look for another solution. I like to hear it because it let's me know it is working.
90259
Well yeas and no. It all depends on how loud you are playing music. I've had mine jacked all the way up and my family can hear it sitting 3 to 5 feet away.
951247
its not that loud, altho u can still hear small amount of sounds from 2-3 feet away. it also depends what audio source ure using. [pc] (i test it by covering both of the ear piece and stretch my arms away from my ears)
104302
I would say 20 to 30 feet within line of sight. I relax in my backyard. Stereo is in my guest house. I use my tablet to control the music. I have the bluetooth device by a window inside. I'm not sure how well it will work inside with a few walls.
1414626
It tells you in the instructions. It at least needs to be 3 feet away to achieve surround sound and can be no further than 15 feet away from sound bar.
53997
The alarm is loud enough to hear it if you're wearing it in a pocket, but not that loud to hear it more than 20 feet away.
1560341
The sound coming from your speakers is only as good as the source of your music. The music should sound good at 3-4 ft if you are using a pretty good CD player or a good quality radio signal, etc.
802015
I would say about 20-25ft at most before the sound cuts out. This is the case for just about all bluetooth headphones, not just this one.
1237222
Not that bad. Definitely not someone on other side of wall, but someone a few feet away in the same room will hear sound.
1845736
The beep is loud enough to hear from a distance. It does not screech. My house is about 60 feet long and I could hear it from one end to the other. I could also hear it when my keys were placed behind some walls. It works well.
1677993
I been able to hear clear sound as far away as 170 feet plus with no objects in the path of the signal. This also depends on the speaker: I use a Boombotix Rex.
164144
I got about 30-33 ft before my music started cutting in and out. My mp3 player was in my purse in my office and I was back in the kitchen (37 ft away). Even though my music was cutting in and out the sound quality, when I had it, was great! But you'll definitely want to use the ear hooks.
1783989
Very quiet.I have it on right now and can't hear a thing. Just 2 feet away.