ANTI-BARK SPRAY COLLAR CITROAutomatically detects when your dog is barking and emits a burst of citronella spray (sold separately) to help deter loud, excessive barking. Advanced barking detection is only triggered by your dog barking, ignoring other dogs barks, headshaking and other noises. Adjust the spray volume and sensitivity to suit your dogs individual needs. Adjustable design suitable for dogs ages 6 months and older who weigh 8120 pounds. Each two hour charge offers up