GOVW Cold Laser Therapy for Dogs, 4x980nm+4x810nm+16x660nm, Cold Laser for Horses, Veterinary Laser Therapy Machine, Pet Laser Therapy, Cold Laser Therapy Pain Relief Device for Animals Like CatsBrand: GOVW Color: Black Features: Combination of 660nm and 810nm and 980nmThe cold laser therapy device for horses has 3 wavelengths. 660nm red light of the pet cold laser therapy device suitable for the surface of skin to promote blood circulation. 810nm of the laser therapy machine for dogs penetrate deeper pain areas, relieve soft tissue pain. 980nm can penetrate deep tissues and relieve joint pain.(810nm is invisible to the human eye but can be