JK TECH Rechargeable No Bark Gentle Spray Collar Pet Anti Bark Citronella Spray Collar Excludes Citronella Bottle For Small Medium Large Dogs Rechargeable spray collar uses a burst of citronella spray to discourage barking for all dogs(Excludes the citronella bottle,tested to be compatible with Petsafe, Dogtek and most other citronella refills available in Amazon) Designed for dogs over 8 lb,Adjustable collar strap fit all size dogs Release a harmless and safe citronella mist spray to stop barking The collar is rechargeable and water-resistant,it comes with USB cable.dark blue and green color available,send randomly. JK TECH Mist Spray Anti-Bark Collar help your pets to develop a good habits,It conditions your dog to stop barking using a harmless burst of spray