the mz-517 minizoom binocular from carson optical is a powerful 5-15x magnification 17mm lens, ultra-compact unit this is light-weight and portable enough to carry nearly everywhere, in any pocket. Fully coated lenses provide a clean, undistorted view, notwithstanding the excessive power and small body size, and the binocular is ideal for wearing events, concerts, and an expansion of out of doors sports. At carson, we manufacture best the best pleasant products. We are so assured in our products that we back them with a no fault, no trouble guarantee! Within the event that your product gets broken, regardless of purpose, carson will restore or update them for a complete fee of $15. 00, which incorporates all go back shipping and managing expenses. No hidden fees! In case your product is located to have manufacturing defects in materials or workmanship, carson will restore or update your product and go back them free of rate.