If you are left wondering what your pet does at the same time as you are away, use the Bark and Activity Counter to distinguish between extraordinary or irrelevant owner-absent behavior and general daily activity as it pertains to bark and activity. You’ll download the data in convenient charts for simple analysis and tracking. Essential diagnostic tool for veterinarians, trainers, and dog owners. Helps distinguish between normal and irrelevant behavior at the same time as you’re away. Records up to 3,000 sessions of 99 minutes each and every. Downloads data in convenient chart form for simple analysis and tracking. Compatible with MAC and PC system. Rechargeable battery (built-in; non-replaceable.) If this product isn’t meeting your needs, please contact PetSafe Brand. PetSafe brand has been an industry leading US manufacturer of pet behavior, containment and way of life products since 1991, helping millions of people and pets each and every year. Call, chat or email the PetSafe US-based customer care specialists six days a week.