Godox MF12-K2 Macro Flash 2-Light Kit 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. 4. Color Effects and Color Temperature Adjustment Set: Included with the MF12 Macro Flash are the MF-11C Color Effects and MF-11T Color Temperature Adjustment Sets. The Color Effects Set contains an assortment of colored gel filters to expand your creation capabilities. Meanwhile, the Color Temperature Adjustment Set contains an assortment of gel filters to adjust the color temperature of the flash head. This allows you to match the color temperature of the ambient light wherever you are shooting. 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 Chann