Features: Support 2. 4G ultra-long-range wireless flash, the farthest triggering distance is up to 100 meters. The same YN560-III can receive the signals sent by RF-603 and RF-602 wireless transmitters, supporting 16 channels, realize wireless flash easily. It can be triggered through the camera set-top, 2. 4G radio, SI and S2 pre-flashing. It provides PC port, you can make the flash synchronously by connecting to the PC port. It can automatically save your current setting. Package includes:  1× Yongnuo YN560III Speedlight  1× Protecting Bag  1× Mini Stand 1× Manual