Noza Tec Spray Control Spray Commander Dog Training Collar Spray 1 bottles Training - Burst of cintronella spray levels to teach commands and correct behavior,Citronella is the use of essential oil fragrance sprays, can effectively prevent the dog barking Spray - Add once can use 20-25 times,One Spray bottle can add about 20 times.When the gas is used up,the red indicator light will flashes two times,it means need to add spray again Package - Only 1 bottles Spray