Features: -TRIOPO Flash Compatible for Sony A7 A7R A7S A7II A7RII A7SII A6000 A6300 A6500 A77II A58 A99 ILCE600L. Built-in 2.4G wireless and S1/S2 optical trigger system; 2.4G wireless distance can range up to 100m. GN58, with TTL, Manual, Multi, Master, Slave, S1, S2 modes. 3 slave groups and 16 channels. Support front-curtain SYNC, rear-curtain SYNC, 1/8000s high speed SYNC, 2.3s short recycle time. Support manual auto zoom, manual zoom range 18-180mm; Auto focus auxiliary AF lamp; Flash exposure lock(FEL/FV); Custom function settings; Signal tones. 1/128~1/1 flahsh output, 0.3EV per step, total 22 fine-tuning gear. -G1-SN Flash Trigger Hot shoe compatible for Sony A77II, A7RII, A7R, A58, A99, ILCE600L camera. Built-in 2.4GHz wireless G transmission system, communication range can reach up to 50m. Can trigger TRIOPO 2.4GHz wireless camera flashes, studio flashes, outdoor flashes with Sony hot shoe. Available modes: TTL, M and Multi. 4 groups and 16 available channels; different groups with different power output for each flash light output. Support up to 1/8000s HSS, front curtain SYNC and rear curtain SYNC. Support exposure compensation(FEC), exposure locked(FE LOCK) and focusing assist(can be disable); Mixed flash mode; Auto save function. Big and clear LCD display for real-time monitor.