B&H has the Vello FreeWave Plus Wireless Remote Shutter Release for Canon cameras for $29.95 (reg. $59.95) as it its Deal Zone deal through Saturday night. Check it out while it lasts here at B&H Photo.
I hadpreviously tested the Vello grips for the Canon 5D Mark II and 7D, and found them to be solid performers – especially considering the price. Check out the Vello grip for the Canon 6D here at B&H Photo.