Description:Features:With pull-type light source switch.Transducer between currency detecting lamp and LED lampWith hand strap， convenient to put in bags or take everywhere.Built -in LED and UV (black) lights for normal illumination and currency detection.Can be used under insufficient sunlight or dark environment.This portable and versatile loupe can be used for jewelry， gemstone， document， stamps，etc.Specification:Color:BlackMaterial: PlasticMagnification:30X and 60XSize: 6.3cm x 3.8cm x 2.2cmWeight:50gBattery type: button battery (3 x LR1130) (installed)Package Included:1 x LED Currency Detecting Jewellery Identifying Magnifier1 x User Manual