Learning Resources GeoSafari Jr. Mighty Magnifier. Children will love seeing the world up close with the GeoSafari Jr. Mighty Magnifier. These hands-free, magnified, explorer glasses are perfect for scientific observation of nature, a key element of STEM based learning. Children simply flip between 2x and 8x magnification and get a closer look at nature. The adjustable headset with hinge makes the Mighty Magnifier hands-free allowing children to take control of how they see the world. The magnifier also includes a soft double eyecup for comfortable support and built in LED light ensures clear and easy viewing during the day and at night. Mighty Magnifier requires 2 AAA batteries (not included). Suitable for ages 4+. .