GY-04K 3-in-1 433MHz Wireless Remote Flash Trigger Set
Model GY-04K Qty 1 piece(s) per pack Color Black Material ABS Connection Wireless Compatible Camera Universal for camera with hot shoe interface Other features Frequency:433MHz; Channels:4; Sync speed:1/250s; Operation distance:30m Packing List 1 x Transmitter 1 x Receiver 1 x Sync cord (15cm) 1 x 3V CR2 battery 1 x 12V 23A battery 1 x English / Chinese user manual