Wow. I'm not really sure if there is another description. Long story semi short, I am a chiropractor and am familiar with the health benefits of cold laser therapy and infrared therapy. I purchased this for a unique situation involving an injury to my horse where convential and alternative therapies have only made a minor improvement. My thinking was that a handheld device would be convienient. It didnt have all the fancy settings my class iv laser at work had so I didnt expect much for results. One treatment. One treatment and my severly injured horse was standing with proper conformation. One treatment and his hip and pelvis immediately relaxed into place. He felt so good he laid down that night for the first time in a month. He felt so good that my other horse laid down with him because they both felt safe because he knew he could get up if he needed to. He popped up with an energy and form I havent seen in a month. His gait is dramtically improved and his joint function improved by 75 percent from the original injury. One treatment. I cant wait to do it again today! I wish more then anything I had done a before and after video but I really didnt think this would work. This prduct will not just be in my barn, but in my office, at the sideline of sporting events, anywhere pain might be. Never seen anything like this. It might not be right for every injury, but with regards to reducing inflammation and healing and recovery this knocks it out of the park. Better then pain meds, safer too. Do not under estimate this laser like I did. Another perk, the batteries came charged so I was able to use it right away when I got it yesterday. Wow.