I was able to use this camera attachment on my Celeston 10x50 Outlander and Barska 20x80 and is fits perfect and snug on both binoculars. The little camera is adjustable as far as fitment on your eyepiece.The app is very easy to use and you get to view the binoculars live on your phone. It connected to my android phone right away and the performance and functionality is smooth. You can then take captures of what you are viewing or record it as video. The quality depends on the focus, clarity and what you are viewing. Overall I am very happy with this little camera and for the price I think it is worth having.

Fast shipping. Good to use. Easily holds my Omegon spotting scope approx. 1.3 kg plus mobile phone and mobile phone holder.

I have just been using these as night vision binoculars instead of strapping it to my head, so I have no idea how the head straps feel.

It takes about two seconds to get started with this. It charges via USB-C, so you can just plug it into your cell phone charger. Then you just either turn it on and start looking, or first insert the included 32gb Micro-SD card if you want to record something. You can adjust the brightness of the IR light with one button. There is one dial for focusing, and it's on the left lens.

The picture is extremely crisp. I'm fairly certain I see better through these, in pitch black, than I do with my eyes in the middle of the day. I can count the whiskers on my cat from 20 feet away in complete darkness. He definitely sees me, due to the red light that comes out of the IR light. So...maybe don't go staring at tigers.

Battery life seems pretty good. I've been playing around with it quite a bit and have yet to kill it. Plus, I just plug it into any of the roughly 15 cell phone chargers that a scattered all over my house when I'm done with it.

Great little scope. Better to have than binoculars. Lightweight easy to carry and use and then put away to be on the move again. A must have for hunts.

The K&F Concept 10-30x50 HD monocular telescope arrives securely packaged. Everything smells pretty chemical, the smell seems to have spread from the bag to everything else. The monocular makes a handy, robust impression. The colors are muted, the surface is non-slip and the magnification settings are easy to use. The enlarged image is clear, although it feels slightly tinted. So it can be used as binoculars. The points of criticism refer to the use with the mobile phone. The tripod is valuable and stable, with a little patience you can find a stable combination with cell phone and monocular without the tripod tipping over. The mobile phone holder is made of plastic, when it is pulled out to adapt to the width of the mobile phone it squeaks and ratchets, the light padding doesn't help there either. The main problem is the interaction of holder, monocular and mobile phone. First you have to position the hole in the bracket over one of the camera lenses that are now available several times. Then the monocular is attached. However, since this has a weight of a good 350 grams, it pulls the holder away from the camera lens and the resulting gap means that you can no longer get a clean photo. So for a good result you have to stabilize the monocular with one hand and use the cell phone/the shutter release with the other. This takes time, patience and a steady hand. This is nothing for a quick snapshot. In addition, without a mobile phone camera zoom, you only get a small round section enlarged, you only get a full picture with zoom and then the photo quickly becomes shaky and blurred. For a meaningful use with the smartphone, a more stable mobile phone holder would be necessary, which can counteract the weight of the monocular. In any case, with a Samsung A 70, the results were disappointing.

Love this little tripod. I’ve used with my cell phone, my GoPro hero 3, and a pair of binoculars. Bendable legs so a variety of uses and also great in small areas.

Im using it for a spotting scope that also has a cell phone mount, so it needs to be steady, and it is

Since my old binoculars were no longer up to date, I decided on this monocular.
The scope of delivery includes the monocular, a bag, cleaning cloths and instructions.

Like many others here, I couldn't focus the monocular at the beginning. But if you take a look at the instructions, it quickly becomes clear why this is the case.
Followed the instructions step by step, the monocular could be focused and shows a really great picture.
Especially with a discount I can only warmly recommend it to you.