The National Geographic 40x-640x microscope is the perfect tool for beginners to start exploring the wonders of the microcosm! The extensive range of included accessories provides already the perfect basic equipment which allows for a quick start. With the included smartphone adapter taking pictures of your observations and sharing them with your friends is as easy as 123. Features and Benefits Portable Can be used anywhere thanks to battery operation. Everything you could ever need is included  Extensive range of accessories for a quick entry into microscopy Smartphone adapter Take pictures with your smartphone through your microscope. With the smartphone adapter, this is now a breeze! Specifications LED transmitted light Height adjustable microscope stage Diaphragm wheel to adjust the light beam Clamps to attach the microscope slides Battery operation Dimensions:  D 22 x W 10 x H 16 cm Colour: Black What's Included 1 x Microscope 3 x Prepared slides 8 x Microscope slides,