It can detect light as faint as 6.5 magnitude or better under the darkest skies for a pinpoint light source. The only real limitation is that nature has not invented the zoom and consequently, the eye magnification is only 1x. Yes, in fact your eyes are remarkable for observing, considering how they are built. The good news is that you can use them directly for deep sky observing.
Some requirements are important.
The first deep sky targets that you can try are some double stars. The most famous is Mizor and Alcor in the handle of Ursa Major's Big Dipper. Five of the stars are part of a loose open cluster averaging 75 - 80 light years distant. The Pleiades, also in Taurus, is the most famous cluster in the sky. Typical dark skies reveal 7 or 8 members forming a dipper-shaped group that is not the Little Dipper.