GODOX TT685N i-TTL 2.4G Wireless Radio System Master Slave Speedlight Flashlight Speedlite

Features:
Powerful flash with guide number 60m at ISO 100.
Supports multiple flash modes M/RPT/Multi.
Support high speed sync, 1st curtain snyc and 2nd curtain sync, the maximum shutter sync is up to 1/8000s.
Support optic transmission, as a master unit, it can control other speedlights, such as for Nikon SB-900 and SB-910 via optical pulse signal; as a slave unit, it can receive signals from for SB-900 and SB-910 and internal flashing from D7100/D7000/D800 ect.
Support 2.4G RT system, built in 2.4G radio transmitter and receiver, can be used as on-camera master unit and slave unit of 2.4G RT system, compatible with speedlite TT685N, Godox X1N, X1T-N and X1R-N flash triggers.
The 2.4G wireless triggering distance can reach up to 100m, better to meet your needs.
Support FEC/ FEB functions.
Multiple flash groups, it supports A/B/C groups.
Supports auto and manual zoom, the flash coverage can be changed between 20-200mm.
Sync port and USB port.