Just received my product today and excited to give it it a try. The only thing im concerned about is when I set it to the 850 NIR there is no light. Not sure if the belt is defective or not.
This is a very sturdy and well designed device with nice features like a timer, selector for red only, Infrared only or both, and a vibration mode! I have used only a few times, but I am very pleased so far.
I GAVE THIS ITEM TO A FRIEND WHO WAS DELIGHTED WITH THE RESULTS. HE SHARED IT WITH ANOTHER FRIEND WHO USED IT ON HIS DOG AS WELL AS HIMSELF. HIS FRIEND THEN BOUGHT HIS OWN FOR HIMSELF AND HIS DOG. BASED ON THIS FEEDBACK I FINALLY PURCHASED MY OWN.