I have also used the Palm and the Infratonic 9 for our 14-year-old chihuahua when she stopped eating and her health began to fail. She lost all energy and dropped a lot of weight. I set up the Infratonic 9 on a positioning stand focused on her crate and kept it on 24/7. After a week and a half, she started eating a bit of food and was soon after improving immensely. My chihuahua gravitates towards the i9 and I share my CHI products with her. The i9 gave her the energy she was not able to produce for herself at the time. She recovered nicely and is back to her old perky self. Thank you again for having these great products.