ALILAKA--Prevent Dogs from Barking, Drive Away unfriendly Dog Trainer, with Lighting Function

I have tried this on about 8 dogs and none of them even twitch an ear to this so I'm sure that the sound is either ineffective or just isn't working. Two adult labs (one blind so he responds only to sound), a dalmatian, a shibu inu, a jack russell who barks constantly, a couple small terrior mixes, and a 3 month old lab mix. Since I can't hear the sound I can't even say it makes the sound but no dog is hearing it that's for sureThere's a flashing light and a laser and yes that gets a dogs attention so you might think the sound works but even with a small skittish dog that reacts to any sound it won't even twitch its ears at all if they aren't looking at it. I seriously doubt this will stop a dog from barking unless the lights momentarily distract them. Maybe a few dogs will chase the laser, my cat will! Like I said maybe it isn't making the sound in which case it's defective and some people will get it to work. But with the variety of dogs I tested it on the sound did nothing and the lights just get them to look.

did not work

Unfortunately the battery which was included does not fit :-( It was wrapped in clear plastic and I unwrapped it and tried to place it in position, and it doesn't fit. I flipped the battery over and it does line up with the connectors but of course it won't click in place because the prongs are backwards.