MEIKE MK-GT600C Wireless High-speed 1.7" LCD TTL Flash Trigger for Canon SLR Camera - Black (4 x AA)
1.7" LCD screen display; Supports 1/8000s high flash sync speed; Supports TTL exposure compensation and M-speed manual flash; Supports three flash groups to ouput different modes and powers of flash; Supports front-curtain sync rear-curtain sync low-speed sync high-speed sync; Supports high-speed synchronous studio strobe and outdoor flash; Supports one transmitter controlling multiple receivers; Supports flash AF assist lamp.