Keep track of your favorite canines with the D.E. Systems Border Patrol Additional Collar. It is easy to put on and remove for your convenience. This Border Patrol collar is useful to ensure that they don't wander off too far. It is designed for breeds that are at least 30 lbs in size. This waterproof training collar is programmable for several different configurations. The battery gives you up to a full day before needing to be recharged.