Building off the success of the 14x40 TSN IS binoculars, the upgraded Fujinon TS-X 14x40 Techno-Stabi Image-Stabilized Binoculars have a wider ±6° stabilization range, a buoyant chassis design, and are powered by rechargeable NiMH batteries—significant improvements over the regular model. With the new X version binoculars, you'll enjoy the high power of 14x magnification without having to use a tripod. See the details of far-off subjects without the distracting hand shake that typically spoils the view of traditional high-power optics, especially useful when glassing from a moving vehicle or when setting sailing across choppy seas. Fully multicoated optics and reverse-Porro prisms deliver a bright and crisp image with accurate color and vivid contrast, and the wide exit pupil and twist-up eyecups make these binoculars comfortable to use, whether you're wearing glasses or viewing for long periods of time. They will run for up to 18 hours on the four included AA batteries, or for 22 hours with your NiMH rechargeables. They come with a case, a strap, and tethered eyecups.