1. High performance high compatibility high power output; Wireless touch induction; With external power socket; Quick power back output the power back only 2.9 seconds; Supports high-speed continuous shooting; Energy saving mode backlight auto off when the flash no operation within 20s CPU automatic into sleep mode when the flash no operation within 60s auto off within 30min when no operation. 2. High accuracy output: 1/128~1/1 0 in total 22-level dimming modes with overheating protection and temperature detection. 3. Flash index: 54 (ISO 100180 mm). 4. Flash mode: M S1 S2 Multi. 5. Color temperature: 5500K. 6. Flash time: 1/200~1/20000s. 7. Flash control: 1/128~1/1 0 0.3EV in total 22-level dimming modes 8. External interface: Hot shoe PC interface external charging port. 9. Recycle time: 2.9 seconds. 10. Left-right angles: 0~90 degree; Left-right rotate angles: 0~360 degree. 11. Battery: 4 x AA(Alkaline batteries nickel metal hydride batteries). 12. Wireless trigger distance: 10~30m.