PIXEL King Wireless Radio TTL Flash Trigger for Sony DSLRs & Flashes 2. Support ADL-TTLTTLM Mode and FEC, FE Lock ,Front-curtain Sync, High-Speed Sync, Rear-Curtain Sync and High-Speed Sync Studio Lights 3. Support Flash Group Setting in Manual Flash Transmitter, and Support Other Brands Compatible High-Speed Sync Flash and TTL Flash (Metz, Sigma, The New Tyrants, Nissin Nissin Ii) 4. Support One Transmitter Control Multiple Receivers, Flash Focusing Lights and Firmware Update 5.Support Other Brands Flash Triggering (May not in High Speed Sync and TTL Flash Mode); Doesn't Support Grouping Ratio Function Between Multiple Flash