Discover the fascinating world of biology with this 40X-640X Compound Microscope, ideal for students, beginners, and hobbyists. Featuring a forward-facing nosepiece with 4X, 10X, and 40X achromatic objectives combined with 10X and 16X eyepieces, this microscope delivers sharp and color-accurate images. The dual coarse and fine focus adjustment knobs ensure smooth and precise focusing. Powered by AA batteries, this microscope offers flexible usage whether at home, in the classroom, or outdoors. Built with a sturdy metal and plastic frame, it's both durable and easy to use. Plus, the included phone holder lets you capture and share your scientific discoveries effortlessly.