Pet Safe Spray Bark Collar Contains adjustable collar with heavy duty plastic clasp closure, charge adapter & 2 extra spray cartridges Collar is re-chargeable & water resistant Consistent way to correct dog’s barking w/o a remote (correction in behavior even if you are not at home…our dog used to go nuts when the mailman or delivery person came to the door) Collar detects barking & immediately releases a gentle burst of spray (scented or odorless options) for distraction Dog learns to associate barking & getting a spurt of mist for the correction of behavior Truly a more humane way to change barking behavior and it works !!!!