Type: Hot-shoe mount flash, Guide Number: 164' at ISO 100 and 105mm, Zoom Range: 24-105mm (20mm with Panel), Tilts from -10 to 90°, Rotates Left 135° & Right 180°, Wireless Master/Slave TTL Functionality, Multi Flash Mode; High-Speed Sync, Weather-Resistant Construction, Runs on Four AA Batteries, Compatible with Fujifilm TTL