Like big binoculars in a tiny size - Swarovski 8x20B-P Pocket Binoculars Waterproof w/ Turn-in Eyepiece - 8 x 20 B Roof Binocular

These binoculars make it easy to birdwatch anywhere. Also great for operas, plays and sporting events. I take them everywhere, just in case that Harlequin duck or Chestnut-sided warbler shows up!
Pros: excellent optics, lightweight, fits in pocket (literally), saves ones neck and back
Cons: none really

This review was written in the old system and had content requirements that are different than reviews written today.