Thank you for viewing. Purchased new from an authorized Godox dealer on Amazon in August 2024. This is an imported product. I used it once for testing and then stored it. I used it with an EOS 40D, and it worked without any problems. I am selling it because I no longer need it. [Authorized Godox Dealer] GODOX FC-16C Transmitter + Receiver Set 16-Channel Wireless Release Studio Strobe Trigger Shutter Camera Shutter Canon Camera 7D 50D 40D 30D 5D 20D 10D 5D Mark II D2000 etc. Compatible [Imported Product] ✧Condition✧ I used it only once or twice for testing, so it's almost like new. ✧Accessories✧ All included. -------- Compatible Camera Models: Canon EOS: 1100D (T3i), 600d (T2i), 60D, 550D (Digital Rebel T2i), 500D (Digital Rebel T1i), 1000D (Digital Rebel XS), 450D, 7D, 50D, 40D, 30D, 5D, 20D, 10D, 5D Mark II, 1D Mark IV, 1Ds Mark III, 1D Mark III, 1D Mark II N, 1Ds Mark II, 1D Mark II, 1Ds, 1D, 1V, EOS 3, D2000. Pentax: K-5, K-7, K10D, K110D Super, K100D, K110D, K200, K20D, *istD, *istDs, *ist, *istDS2, MZ-6, ZX-L, MZ-L. This remote control, which adopts the Godox X remote control system, features multi-channel triggering, stable signal transmission, and sensitive response. Consisting of a transmitter and receiver, it functions as a remote studio flash trigger, speedlight trigger, and camera shutter. 16 selectable channels. Working distance: 100M (open area). Triggers multiple strobes in combination. The maximum sync speed is 1/250 second. Power supply: Transmitter 3V (2 AAA batteries); Receiver 3V (2 AAA batteries) (Batteries not included)