... focus Source:Four LED,adjustable led light, USB power Description:Eloam Handheld Digital Microscope can be connected with computer and easy to ... . Please send to the maintenance center10. Using or storing USB microscope,need to watch all cables to avoid trip over.11 ... PC or TV. Please pull out the power source. 5mp handheld usb microscope,1-500-fold zoom freely adjustable,make picture capture and ...