5000 plus quick track mounted on 3 element antenna with 4 refurbish quick collar and 4 changeable wildlife collars. 3 of wildlife works and 1 does not work. 5000is a 1-2000 model and 4 quick track collars refurbish this year. The wildlife collar are older collar . Call after 7 p.m. or text anytime 912-256-1272.