Ubiquiti Networks 2 Pack NBE-5AC-GEN2 NanoBeam ac Gen2 airMAX ac CPE with Dedicated Management Radio

I only need to extend my Inet about 100 ft. from my house to my metal barn. Will this product work or is this option overkill?

If i received the international ap will it work in the usa?

Do these come with poe injectors?

How will this perform at 150 yards with trees in the way?