For remote control and triggering of a variety of flash units. With 16 wireless channels and up to 5 groups. Multiple exposure control systems, including E-TTL II/E-TTL autoflash, manual flash, multi-flash, and Gr-flash. Maximum transmission range of 100 m. Frequency: 2.4 GHz. The firmware can be updated via USB (Micro-USB). Large and clear display and user-friendly buttons. With the YN560-TX II PRO Flash Controller for Nikon by Yongnuo, you can remotely control and trigger a variety of flash units and wireless receivers. This transmitter is designed for Nikon cameras and is compatible with a range of devices, including the YN200 and YN862 series Speedlites, as well as triggers 560/660/720/860/603/605. This updated model features an LCD menu and supports I-TTL with a selection of 16 channels, allowing you to control power and flash exposure compensation without interference at impressive distances of up to 100 m. Flash remote trigger. The flash remote trigger allows you to synchronize the triggering of the camera and external flash units. Control flash units that you want to use for optimal lighting of your subjects, wirelessly and conveniently at the push of a button.