Medicine & Remedies
iKeener Handheld Red Light Therapy Device,(4x808nm +12 X 650nm) Cold Laser Human/Vet Therapy Device for Muscle Reliever,Knee,Shoulder,Back.Infrared Light Therapy Pain Relief Device,with Free Goggles
Portable & Convenient Operation - Small size and handheld,specially design for household use.Just use your phone or any phone's camera to take a picture and look through this picture and you should see it. Its not that red and smaller than 650nm...
https://www.bizrate.co.uk/medicine_remedies/ikeener-handheld-red-light-therapy-oid20356648757.html