Product feature:The Benefits of Red Light Wrist Belt Each red light therapy belt is embedded with 48 LEDs, and each LED has 1 Red Light(660nm) and 1 Infrared Red Light(850nm) chips. Protect your wrist joint from low blood circulation, arthritis, and inflammation, effectively relieve muscle and chronic pain, and increase blood circulation.4 Working Modes for Therapy There are 4 modes to choose according to your need. 660nm red light; 850nm infrared light; 660nm red light & 850nm infrared light; Pulse with 660nm & 850nm. This red light therapy device can be used 2-3 times per day, 20 minutes per time, it can give you pain relief.Upgraded Pulse ModeOur red light therapy belt with pulse mode can penetrate deeper into your skin and provides a stronger effect on pain relief, enhancing results on cellular repair, metabolism, cell viability, and regenerative capacity. And if you have thin skin, you can choose pulse mode to get a transitory buffer.Auto Shut Off Design The red light therapy device auto shuts down after 30 minutes, if you forget to turn it off, the automatic shutdown will save you power. In order to prevent damage caused by overuse, please do not use it for more than 30 minutes each time.Package include 1X Red Infrared Light Therapy Wrist BeltProduct details1. LED quantity: 48 PCS (0.6W-LED chip)2. Input voltage: AC 100-240V Output voltage: DC 5V 2A3. External battery: support 5V charging bank (not included)4. Shell material: cloth+submersible material5. Optical power: 124.1mw6. Size: 40x10cm7. Spectrum: 660: 850 (660nm: 48 * 1 crystals/capsule, 850nm: 48 * 1 crystals/capsule)8. Maximum actual power: 11WPackage include1X Red Infrared Light Therapy Wrist BeltNote:1. Due to manual measurements and slight color variations, please allow 1-3 cm (0.4-1.18 inches) difference to suit different display settings.2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.