Yongnuo Flash Battery Pack SF 17 SF-17N SF17N for Nikon

Compatible with following flash:  Nikon flash: SB-11, SB-20, SB-22, SB-24, SB-25, SB-26, SB-27, SB-28/28DX, SB-80DX, SD800 Canon flash: 580EX II, 580EX, 550EX, MR-14EX, MT-24EX  Sony flash: HVL-F56AM Quick Overview: This product adopts 6 pcs AA batteries, it can increase the flash light working ability, suitable for Canon, Nikon, Sony flash light, perfect choice for professional photographer and shutterbugs.   Features: Performance: the external battery pack can reduce the recycling time, and increase flash times of flash light, suitable for using in continuous flash. Convenience: Adopts 6 pcs AA batteries, it can increase the flash light working ability. Protective Case: Matched with protect case, it can be placed on the belt or bag, it is convenient to carry. Power supply: 6 * AA battery (the battery is not included) Operating temperature: 0℃-40℃ Product weight: 147g Product size: 15.5 * 6.5 * 2.5cm   Package list: 1 x Flash battery pack 1 x Protect bag 1 x User manual