Barska AB12534 10-30x50 Shock Absorbant Multi-Coated All Purpose Binoculars. The 10-30x50 Level Zoom Binocular by Barska is a great all purpose binocular that is ideal for bird watching, sporting events, concerts, hunting, and much more. The variable 10-30x magnification range of this binocular allows the viewer to scan a large field of view and then zoom in on the selected object for a more detailed look. A zoom thumb-lever is conveniently located near the eye cups, allowing quick and smooth magnification adjustments to be easily made while simultaneously looking through the binoculars. Shock-absorbing rubber armor provides protection to the optics and creates a non-slip ergonomic design, while fully mulit-coated optics deliver an impressively clear view. The 10-30x50 Level Binoculars feature a central focusing knob that allows for smooth focusing and easy operation. These Level Binoculars come with a soft carrying case, neck strap, and a lens cloth.