Aokatec AK-TTL(TX+RX) Radio Wireless TTL Flash Trigger Kit for Nikon, Canon, Pentax DSLR cameras and Speedlights
The Aokatec AK-TTL is a multi-feature radio flash trigger system for wireless flash shooting. Most of the original wireless flash system controlled by optical signals (such as Nikon Sony Pentax). They are generally limited to line-of-sight operation and shorter ranges. The AK-TTL system convert optical signals to radio transmission, it retain all functions of the original system, achieves a transmission distance of up to 360ft./110 m, all at a 360 degree angle. With the extended, more reliable range afforded by radio transmission, ambitious photography is made easier. The AK-TTL also can work as a simple manual flash trigger.Compatibility:    Nikon ---------- iTTL/CLS (Creative Lighting System )    Canon --------- Wireless E-TTL flash system    Pentax -------- Wireless P-TTL flash system