1. REVITALIZE YOUR SHOULDER: The red light therapy device for neck and shoulder offers multiple therapy modes. It has 660nm red light, 850nm nearinfrared light, 660 850nm combined light, and 10Hz pulsed light to deliver a comprehensive red light therapy experience.2. THE MAGIC OF DUAL LIGHT: Our red light therapy device uses dual wavelengths (660nm and 850nm) which penetrate deep into the skin to effectively relieve muscle fatigue and soreness. There are three intensity levels and three timer settings for a customized therapy experience for faster recovery and deeper pain relief.3. EFFECTIVE PAIN RELIEF: The 24.4 x 22.8inch (620 x 580 mm) red light therapy pad has 140 LEDs and 520 chips (each LED contains 3 chips). It wraps around the neck, back, and shoulders comfortably, delivering 23 mW/cm of irradiance to alleviate pain, relax muscles, boost cell vitality, and improve blood circulation.4. THERAPY ON THE GO: Our compact 2in1 power bank and controller combines convenience and portability. The magnetic 3000mAh power bank allows for flexible light therapy anytime, anywhere. The multifunctional controller enables quick adjustments to intensity, modes, pulse settings, and timer for a tailored therapy experience.