Vello FreeWave Stryker Lightning & Motion Trigger for Select Canon Cameras Detects Lightning and IR Heat Motion | 0.1 ms Post-detection Triggering Compact, Lightweight | Passive Infrared Sensor Optional Cables for Most Other Brands | 94 x 82&deg; Field of View Motion Range: 16.4' | Locking Cold Shoe or 1/4"-20 Stand Mount What's In The Box: Trigger, FreeWave Camera Release Cable for Select Canon, Pentax, Samsung Cameras, FreeWave Camera Release Cable for Canon Cameras with 3-Pin Connection, Cable Compatibility List, Limited 1-Year Warranty