Sony HVL-F60RM2 Wireless Radio Flash

Sony HVL-F60RM II Specs Flash Head Guide Number 60' / 18.3 m at ISO 100 (200 mm Position) Coverage Full-Frame14 to 200 mm (with Reflector) Bounce Head Yes Swivel Head 180° Recycle Time Approx. 1.7 Second Exposure Control Exposure Control Sony ADI / P-TTL Wireless Wireless Operation Radio (TTL/Manual)Up to 98.4' / 30 m (Commander, Master, Optical Slave, Slave) Wireless Channels 15 Wireless Groups 3 Power Internal Power 4 x AA (Alkaline, NiMH) External Power Pack Compatible Yes General Mount Shoe Off-Camera Terminal 1/8" / 3.5 mm Dimensions (W x H x D) 3.1 x 5.6 x 4.1" / 78.1 x 143.1 x 104.6 mm Weight 15.5 oz / 439 g