Supply powerful lighting with the compact high-performance HVL-F45RM clip-on flash. Explore freedom of built-in wireless radio control in multi-flash settings and conventional optical wireless communication. With its built-in wireless radio-controlled system, the versatile HVL-F45RM can be used as either commander or receiver, supporting a wide range of shooting situations. Radio signals enable stable connection over a wider shooting area. Compatible off-camera flash units or receivers pick up radio signals - in bright light, around obstacles, and even when installed behind the camera. That means more consistent results without pairing errors.