Elvid Lynx USB Electronic Follow Focus Remote Controller for Canon DSLRs Electronic Remote Focus & Exposure Controller | Manual Focus Wheel | Adjustable Focus Speed Shutter Release & Video Record Button | Auto Focus Button | Programmable Focus Point Presets Provides Automated Follow-Focusing | Magnified Focus Function | Works Handheld or Rod Mounted Includes Single & Dual Rod Rig Mounts What's In The Box: Single Rod Rig Mount, Dual Rod Rig Mount, USB Cable (5 ft / 1.5 m), Retro Leather Case, Wrist Strap for Retro Case, User Manual, 1-Year Limited Warranty