Vello FreeWave Fusion Pro Wireless Flash Trigger and Remote Control for Canon DSLRs 2.4GHz Reduced Interference Frequency | Range Up to 600' | Individual/Group Wireless Flash Trigger Up to 3 Light Groups | 7 Group Combinations | Flash Sync up to 1/200 Sec. TTL Pass-through | PC Connection | Dual-Function Shutter Release Button LED Indicators Whats In The Box: FreeWave Fusion Pro Transmitter, FreeWave Fusion Pro Receiver, Studio Trigger Cable (2.5 mm Sub-Mini to 3.5mm Mini), Studio Trigger Adapter (3.5 mm Mini to 1/4" Phono), 2AAA Batteries, Limited 1-Year Warranty