Features�� LED light and audio result indication�� Accurate and reliable reading�� Metal alert�� Simple calibration for stones of various sizes�� Convenient carrying case�� Testing platform for loose stonesOne mini jeweler's loupe with 60X magnification power is included. This portable and versatile loupe can be used for jewelry， gemstone， document， and currency authentication.Main features:�� Built-in LED and fluorescence lights for normal illumination and currency detection (batteries are pre-installed)�� Easy focus adjustment�� Convenient carrying pouc Specification Dimensions6.5" x 1.5" x 0.75" (Depth)Weight5 ozTesting CapabilityDiamondsDiamond simulation (e.g. CZ)Metal Color BlackAuto Off ��N/AInitial warm-up�� ~ 20 sec.IndicatorAudio and LED lampsPackage Includes ? One portable diamond tester (V2)? One testing platform? Power: 1 x 9V battery ��Not included. You need to purchase a 9V 6F22 battery for use��? One mini 60X jeweler's loupe? User's manuals