Value Pack includes: the BT-502A product kit + 10 additional batteries (5 alkaline batteries 6v and 5 alkaline batteries 12v. Each dog is going to be different, that's why this trainer was carefully designed with four levels for each dog. You can instantly select the right level from the compact handheld transmitter; and with 150 yards of range, your dogs will have the freedom to run.

Train 2 dogs from 1 unit with this convenient training system

Water-resistant transmitter with tone/no-tone stimulation

4 stimulus levels for each dog; 10-second lockout prevents over-correction

150-yard range; low battery indicators; collars fit neck sizes 8 to 21 inches

Receiver measures 2 by 1-1/4 by 1-1/2 inches; transmitter measures 1-3/4 by 5/8 by 3-1/2 inches