Highlights Dual Therapy Light Magic: Unleash the power of dual wavelengths (660 nm and 850 nm) of our red light therapy for foot, penetrating deep into the skin to effectively relieve feet pain and soreness. Combined with the 10 Hz / 40 Hz pulse, it provides faster recovery and pain relief from high heels, exercise, or long periods of standing. Effective Pain Relief: The red light therapy slipper is equipped with 120 LED lights and 360 chips (each light contains 3 chips). It can wrap around the entire foot, sole, tiptoe, toes, and instep, providing 20 mW/cm² high radiation to relieve pain, relax muscles, and promote blood circulation. Upgraded Design: Dual-sided LED light therapy shoe provides targeted therapy to both the soles and tops of your foot.