Twinsim YN560 IV Wireless Flash Master and Slave

The YN560 IV is a versatile wireless flash system. As a master unit, it offers 3 independent groups with control capabilities, allowing remote adjustment of flash modes, power, and focal distance. As a slave, it fully supports wireless triggers like YN560-TX, RF-603 (I/II), and RF-602. Features include multiple trigger modes, a high-output 2.4G wireless signal, M/Multi mode activation via camera top, and pre-flash cancelled S2 trigger. It features electric zoom (24-105mm) and ultra-fast recycle, with sound alerts for focus assistance.