300x25 Binoculars for Adults and Kids, High Powered Mini Pocket Binoculars with Phone Adapter, Waterproof Compact Telescope for Bird Watching, Concert, Theater, Opera, Traveling, Sightseeing

these binocs are amazingly powerful and have very clear optics. I had large bushnells etc before, but these are small, very lightweight, yet durable. I have bought three and they make great inexpensive gifts. Best value I have seen in a long while.

Good pinoculos, I can to see very far.

It's nice and compact, clear view and easy to focus but the phone attachment is kind of gimmicky and really doesn't work as we thought it would. Great for concerts, but not for increasing the zoom on your phone camera.

Small and lightweight. Easy to use. Worked better outdoors than inside .

They work great and they were delivered as requested. But I think their size is more for children.

Bought for my grandson and he loves them.

I have used the binoculars a few times now and they have great. My kids like to use them and so far they have worked great.

These are compact, well-built and reasonable optical quality. They are are surprisingly small and not going to rival the image you might get from larger, more $$$ binoculars. The field of view is a bit constricted and "cloudy"/distorted, though still a usable, highly magnified view. I don't know optical specs, though these seem a bit too powerful for their size, if anything. We've had to earn to prop them on something solid (tree, fence post, bolder) to work best. Independent adjustment on one eye works okay and it is fairly easy to focus. They are for bright-lit scenes only. Not good for stargazing - you can see the moon, though not much else - a recent comet seemed more visible without these (our 8" telescope made the comet spectacular!). These are a great compromise. They are not intrusive and easy to take along on hikes or other outings. Yet they do the job well enough, especially for my tween son. We were at Fort Pulaski and could see a bird of prey more than 300 yards away. Through these, we could tell it was an Osprey and could sort of see it busy in its nest (we *think* it had young, though couldn't confirm - no heads popped up above the nest...) So far, they have held up to many outings, including a three-day school nature field trip with these being passed around to many, many other fifth-graders. That's all they needed to do. Survive and keep tweens engaged and learning. Good deal for the money.