Features: Effectively manages power to ensure stable and prolongs service life of FPV flying glasses. For FPV Glasses series, widely applicable to a variety of FPV equipment. Equipped with power management function, it can regulate power output to protect device from overloads shortcircuits. Easy to carry and install, providing users with power management solution. Stable power output ensures that for FPV flying glasses work stably and not affectedd by Voltages fluctuations. Specifications: Size:about 48x29x10mm/1.89x1.14x0.39in For FPV Glasses Series Package Includes: 1Set Power Management Module note: Due to the different monitors and light effect, the actual color the item might be slightly different from the color showed on the pictures. Please allow 1-2cm measuring difference due to manual measurement.