TTL Trigger for HD610, supports high speed sync and has a hot shoe bypass. The TR-612N is compatible with Nikon DSLRs.

Frequency: 2.4GHz
Channels: 16
Groups: A/ B/ C
Distance: 300m
Flash Sync Speed: 1/8000s
Support Camera Shutter Functions: single shot, continuous shooting, 4 seconds delay shooting, wireless remote control function