YONGNUO RF605N Wireless Flash Trigger
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Compared with RF-603 II, RF-605 has below function:
1, it has two communication modes RF-602 and RF-603, so you can use RF-605, RF-603,RF-603 II, RF-602 together.(but you can't use them in group function together)
2, it has TX(single transmit)/RX(single receiver)/TRX(transmit-receive automatic s...