Does the QFX ANT-23 need power?

No. It is a passive antenna with no amplifier, so it draws no power and needs no outlet. That also means it gives no signal boost in weak reception areas.

How far from the towers will it work?

The maker rates it for roughly 25 to 40 miles. Buildings, hills and the antenna's placement indoors all cut into that, so expect the shorter end in dense areas.

Do I have to point it at the towers?

No. It is omnidirectional and picks up signals from any direction, so you can place it without aiming. Moving it higher or near a window can still improve reception.

Will it get 4K channels?

It passes through 1080p and 4K broadcast signals as long as your TV tuner supports them. The antenna itself does not create channels your location cannot receive.

What comes in the box?

The antenna with its attached 10-foot coaxial cable. You connect the cable to your TV's antenna input and run a channel scan.

Can I use it in an RV or truck?

Yes. It is small and needs no power, so it works as a portable antenna on the road. Reception depends on how close you are to broadcast towers at each stop.