1. REVITALIZE YOUR SHOULDER: The red light therapy device for neck and shoulder offers multiple therapy modes. It features 660nm red light, 850nm near-infrared light, a combination of 660nm and 850nm light, and 10Hz pulsed light to deliver a comprehensive red light therapy experience.2. THE POWER OF DUAL WAVELENGTHS: This red light therapy device utilizes dual wavelengths (660nm and 850nm) that penetrate deep into the skin to help relieve muscle fatigue and soreness. With three intensity levels and three timer settings, it provides a customizable therapy experience to support faster recovery and enhanced comfort.3. TARGETED RELIEF: The 24.4 x 22.8 inch (620 x 580 mm) red light therapy pad contains 140 LEDs with 520 chips (each LED contains 3 chips). Designed to comfortably wrap around the neck, back, and shoulders, it delivers 23 mW/cm of irradiance to help reduce discomfort, relax muscles, support cellular health, and promote blood circulation.4. PORTABLE THERAPY: The compact 2-in-1 power bank and controller offer convenience and portability. The magnetic 3000mAh power bank enables flexible use anytime, anywhere. The multifunctional controller allows easy adjustments to intensity, modes, pulse settings, and timer for a personalized therapy session.