Convert any trail camera with a standard SD card slot to a cellular cam with the Spypoint Cell-Link Trail Camera Cellular Adapter. The Cell-Link simply plugs into a cam's memory card slot and then transmits its photos to your phone, using the AT&T wireless network. You don't have to trek into the field to see what activity the camera has captured. Fees range from a free plan for 100 photos a month to $15 per month (month-to-month, $10 with annual contract) for unlimited images. The Cell-Link is powered by eight AA batteries and requires a user-supplied microSD card.