Featuring a 2.4 GHz wireless radio receiver, the Yongnuo YN560-III Speedlite is a long range manual flash unit capable of being triggered from up to 300' away with the YN560-TX, RF-603, and RF-602 wireless transmitters. The YN560-III is powerful with a guide number of 190' at ISO ...
Off Camera Terminal?: ?PC?
Guide No?: ?190.29' (58 m) ISO100 at 105 mm position?
Slave Timing Modes?: ?Instant Sync; Skip Preflash?
Power Source?: ?4x AA Alkaline, Rechargeable NiMH Batteries?