Canon RC-6 Wireless Remote Control with Replacement Battery and Fibertique Cloth Price: $24.99 (as of 12/11/2019 07:33 PST- Details)

Compact, easy-to-use infrared remote control for compatible Canon cameras (see description to see if your camera is compatible)
Fires a camera wirelessly from as far as 16′ and operates in either 2-second delay mode or will instantly take a shot
Use to activate mirror-lock and bulb-shutter functions as well as to initiate the video function on select Canon DSLR cameras

Usually ships in 24 hours