Sony HVLF46RMA GN46 WIRELESS RADIO CONTROL FLASH

uto Electronic Flash with Pre-Flash Metering
Powerful and versatile with a flash coverage setting of 105 mm and a guide number of 46 (ISO 100)
Fast Recycling time of 0.1-2.5 seconds (depending on the battery type), allowing for rapid shooting without long waits between flashes
Wireless Flash Control ability to control the flash wirelessly (2.4 GHz band, 14 channels, up to 30 meters)