GODOX X1-N FEATURES Godox 2.4GHz RF Radio System Range – 100m + Flash Modes – iTTL / M / OFF HSS to 1/8000th Second Curtain Sync FEC / FEB – 1/3rd Increments (±3 Stops) FEL (Flash Exposure Lock) Manual Flash – 1/128 – 1/1 Output (1/3rd Increments) Remote Flash Zoom (Auto / Manual) (Global for All Groups Only) Group Mode – 5 Groups A / B / C / D / E (D & E Are Remote Manual Only) 32 Channels Large LCD Display with Back Light HSS Delay Setting – 0~19.9ms, (100us Increments) Modeling flash Auto Memory Function AF Assist light (With an On/Off Switch) Wireless Shutter Release Micro USB Port for Firmware Upgrades Transmitter PC Sync Port – Input & Output Receiver 2.5mm Sync and Shutter Release Port – Output The X1-N provide TTL, HSS (High Speed Sync) and most of the features comparable popular TTL triggers provide, even a HSS Pre-sync Timing Adjustment. Godox have even considered small (though important) details like PC Sync Input and Output, something most radio triggers constantly miss. At the time of writing this the X1-N unfortunately do not provide Second Curtain Sync. Though that may change in time as the Canon version X1-C have now been updated through firmware to provide Second Curtain Sync.