What makes spray effective?
A sudden burst of spray releases as soon as the collar detects your dog's bark. This spray (citronella or unscented) startles your dog which disrupts the barking or whining.rechargeable
The PetSafe Spray Bark Dog Collar is rechargeable, use the included USB charger (or any standard USB charger) when the battery is low; average battery life is up to 40 hours depending on use.
Citronella vs Unscented Spray
The collar works with Unscented or Citronella spray cartridges. Both spray options are safe and will distract your dog and interrupt the unwanted behavior. Both are equally effective at deterring nuisance barking however, some dog owners prefer no scent.