It's not an instantaneous process to train a high-energy dog. Astro is a very energetic and personality-packed Doodle; therefore, it took some time to get him used to the new routine with the Halo Collar 5. As the technology was used more, the modifications began to become more apparent. With each training session, Astro became more comfortable, responding to the prompts and gradually growing more confident in the virtual bounds. So in this Halo Collar 5 Review, I will tell y