Since the entire SpotOn system is self-contained in the collar, each dog requires their own collar. You can share fences between collars and manage multiple collars through the App. 

We offer an automatic 15% discount for multi-collar purchases. 

If you have any questions, we’re here to help. You can reach us at Support@SpotOnFence.com or Monday - Friday 9 am-5 pm (eastern time) at 1.603.488.1504.