Features:  Built in overcurrent protections circuit, even if it is full, there is no need to worry about overload and damage to the machine.  Replaceable and rechargeable battery.  Push-type automatic flip, more convenient to work.  LED lighting for easy operation in dark environments.  Standard 2.5mm interface.  Fine quality laser probe, the penetration distance is longer and the service time is longer.    Specifications:  Output power: 10mw  Output wavelength: 650nm  Interface: 2.5mm  Color: black  Main material: plastics+metal  Battery: 7V, 600mAh  Item size: 125 * 35 * 17mm / 4.9 * 1.4 * 0.7in  Item weight: 38g / 1.3ounce  Package size: 150 * 50 * 35mm / 5.9 * 2.0 * 1.4in  Packge weight: 50g / 1.8ounce    Packing List:  1 * Fiber Optic Tester  1 * User Manual  1 * USB Cable