12 IN 1: With a detachable tip. Connect the tip, it is a facial treatment device for the mouth, nose and ears, perfect for cold sores, canker sores, and hot lip blisters. Remove the tip and it can be used as a pain reducer and therapy for the neck, shoulders, wrists, fingers, waist, knees, ankles, joints, etc. 2LED: With 5 LED and 5 wavelengths, 630 and 660nm red LED, 850 and 900nm near infrared light which is unseen, and 460nm blue LED. Reaching the deeper tissue of the injury so that visible results can be seen faster. Be sure to wear eye protection glasses when looking from side. 33 LED MODES: There are 3 different therapy modes. Red and blue LED mode: reduces pain and inflammation. Red LED mode: reduce pain. Blue LED mode: treat inflammation alone. The 3 in 1 red LED penetrates deep into the skin, causing thermal effects such as muscle. It then increases circulation, increases metabolism, reduces pain and promotes muscle relaxation. 4SKIN CARE: It also improves skin, reducing wrinkles, pimples and blemishes, as well as improving skin elasticity and gloss. Safe to use, radiatio free wavelengths of red LED that do not negatively affect the body. 5PULSE: Designed for thin skin to give a short cushion. It works by pulse irradiation to reduce tissue heat and avoid overheating. If you feel the energy is too hot, pulse mode would be a thoughtful choice. 6TIMMING: Stainless steel materials. The Red LED Therapy flashlight supports a 5 minute timer and simply shines the light on the sore area to relieve pain and discomfort 2 ot 3 times a day. And this device is also suitable for pets, such as dogs, cats and so on.