Godox MF12 Macro Flash 2.4 GHz Wireless Control Light (Black) Features 1. 2.4 GHz Wireless Control: 2.4 GHz wireless technology enables long-distance transmission, adding more flexibility to your shooting. Additionally, 5 groups with 32 channels each help to prevent interference and disturbance when several wireless systems are working close to each other. 2. Compact Design: The MF12 Macro Flash is optimized for close-up photography due to its compact design and unique ability to be mounted directly to a lens via an optional adapter or placed around the subject with the included flash stand. Also, its size and wireless capabilities make it a good option for general photography as well. 3. Rechargeable High-Performance Battery: The powerful built-in lithium battery supports approximately 500 full-power flashes with a 0.01 to 1.7 second recycling time. The battery is also easily rechargeable through an included USB Type-C cable. Specifications 1. Model: MF12 2. Material: Plastic 3. Built-in lithium battery: 3.7V6.29W 4. Guide number (11 output): GN=16.1 (+-0.1) 5. Flash power: 12W 6. Output level: 8 levels: 1128~11 7. LED modeling light brightness: 1~10 levels 8. Display: OLED display 9. Optical flash: S1 secondary optical trigger 10. S2 secondary optical trigger with anti-pre-flash function 11. Flash mode: TTL auto flash, M manual flash 12. Flash duration: 11200 sec~134000 sec 13. 2.4GHz wireless transmission: OnOff 14. Channel: 32 Channel: 1~32 15. Group: 5 groups: ABCDE 16. ID: Off01~99 17. Transmission distance: 30m 18. Type-C charging: 5V 2A 19. Full power flashing: about 500 times 20. Recycling time: about 0.01~1.7 seconds 21. Battery level indicator: The battery level indicator is displayed in the upper right corner of the display 22. Power saving: 30 minutes60 minutes90 minutes: Automatically power off when unattended for more than 30 minutes6 minutes90 minutes. 23. OFF: Turn off the