This Optical Device is a 60x-120x power LED Lighted pocket microscope. The MBplus is an extremely powerful, compact and lightweight portable microscope. . The variety of uses is endless. The LED illumination and internal aspheric lens system will ensure users a clear, bright and crisp image. The MBPlus is powered by 1 AA battery (not included). The MBPlus LED system is backed by the manufacturer's one year warranty.