VERSATILE DESIGN: Multi-flash solution for macro photography; standalone or in combination for a shadow-free ring flash effect COMPACT & CONCEALED: Adjustable head for quick positioning; Compact size for 'invisibility'; Fits narrow spaces with Extreme Close-Up Positioning Adapter POWERFUL PERFORMANCE: High-capacity lithium battery supports 500 full-power flashes; 0.01-1.7s recycling time; Recharges via USB Type-C cable WIRELESS CAPABILITIES: 2.4 GHz wireless technology for long-distance transmission; 5 groups with 32 channels each for interference-free operation