Build Your Own Garmin T20 Collar Battery Type:Extended Battery Pack Adjustable gusset

Adjustable gusset

Heat Holders® Men's ORIGINAL™ Base Layer Top is a heavy weight thermal base layer ideal for extreme cold

Includes preloaded TopoActive maps

Bellowed Front Cargo Pockets for Shotgun Shell Boxes

and ribbon-style design

Build Your Own Garmin T20 Collar Battery Type:Extended Battery Pack Adjustable gussetBuild Your Own Garmin T20 Tracking Collar. Choose your flex band size (mini or regular), battery pack (standard or extended), and antenna (long or short range)! This extended battery pack is user replaceable and allows up to 136 hours using dynamic update rate. The standard battery pack allows up to 68 hours using dynamic update rate.