SPRAY TO KEEP BARKING AWAY: Gentle bursts of spray distract your dog and deter him from continuing to excessively bark LEARNS YOUR DOG’S BARK: Our unique bark-sensing technology prevents outside noises like other dogs’ barking from causing a correction 2 SPRAY CARTRIDGES: Includes 2 spray refill cartridges in unscented and citronella; try them both to see which scent works best for your pet RECHARGEABLE BATTERY: The collar quickly recharges in just 2 hours (with the included USB charger) and holds a charge for up to 40 hours depending on use SIZING: Collar fits dogs 8 lb and up and fits pets with a neck size up to 27 in BARK COLLAR YOU CAN TRUST: For 25 years, we have been the trusted brand in creating safe, high-quality, training products to help you and your pet live happy together U.S.-BASED CUSTOMER CARE: Our pet product experts are here to help you and your pet and are available by phone, email or chat if you have any questions QUALITY PROMISE: PetSafe brand has been a trusted global leader in pet behavior, containment and lifestyle innovations since 1998 to help keep your pet healthy, safe and happy