OverviewAdvanced Red Light Therapy Products: Our device features two types of red light, 660nm red light and 850nm infrared light. 660nm red light stimulates the surface of your skin, improving its condition and increasing collagen production for a more youthful appearance. 850nm infrared light penetrates deep into your muscles and bones, stimulating osteoblast proliferation, accelerating bone repair and cell regeneration, and reducing inflammation and effectively relieving joint pain.Designed for Convenience: Measuring 5 x 11 inches, this Red Light Neck Therapy device is designed to relieve fatigue and pain in multiple areas such as the neck, shoulders, wrists, elbows, ankles, and more. Its weight and compact shape allow it to be used in a variety of settings, so you can enjoy the benefits of Red Light Therapy whether you are sitting, lying down, or walking.Portable and easy to use: Enjoy the comfort of easy operation, it can be powered by a portable power supply, which means you can use it anytime, anywhere. Just press and hold the on for 3 seconds to turn the power on or off, and easily change the treatment time with just one press: Green - 15 minutes, Blue - 30 minutes, Red - 45 minutes.Touch-friendly materials: Red light neck therapy is made of touch-friendly materials without TPU film. Its comfort s that you can feel the gentle therapeutic effects of red light without causing any discomfort to the skin.Suitable for everyone: Whether you are an athlete, a fitness enthusiast, an office worker, or someone seeking relief from muscle pain or joint pain, Red Light Neck Therapy is the perfect gift.