Yongnuo 2pcs YN560 IV Flash kit +YN560TX LCD Wireless Flash Controller For Nikon Yongnuo 2pcs YN560 IV Flash kit +YN560TX LCD Wireless Flash Controller For Nikon Yn560 IV Supports setting save automatically, custom settings. Supports Wireless Slave Function, fully supports YN560-TXRF-603I/IIRF-602 Wireless transmitter One YN560 IV can respectively receive the wireless signal from YN560 IVYN560-TXRF-603 (I/II)RF-602,with optional 16 channels; when the YN560 IV and YN560-TX used as transmitter, it can realize remote control the parameter settings. Supports Multiple Trigger Synchronous Mode.Supports ultra-fast charging recycle system, External power supply. Equipped with Big Size LCD Display Screen, Standard PC Synchronous Interface