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.