Product details:
Greatest power with the most compact package Fully compatible with all on camera Nikon i-TTL controls including Automatic TTL Exposure Control Flashpoint R2 integrated wireless transceiver Compatible wireless TTL systems: Fully supports Canon E-TTL systems, Nikon i-TTL optical, Nikon i-TTL, and using the 2.4Ghz Flashpoint R2 radio system. Functions as Master or Slave unit in a wireless flash group.