PRECISE TTL METERING - Ensures optimal exposure in every shot, automatically adjusting flash output for perfectly lit images with your compatible Sony camera. RAPID RECYCLE TIME - Minimizes downtime with a quick ~3-second recycle time at full power, so you're always ready to capture the next fleeting moment. ULTRA-PORTABLE DESIGN - Compact dimensions of 57x40x22mm and a weight of only 34g make it the perfect on-camera flash for photographers on the move. CONSISTENT POWER OUTPUT - Delivers reliable performance with an approximate Guide Number of GN12 @ ISO 100, providing consistent lighting for various scenarios.