DGYAO 660NM Red Light & 850 Near Infrared Light Therap-y Device for Feet use it consistently for 2-3 weeks to see results! New Original Cordless Series from DGYAO - Recommended by Doctors & Used by Health Professionals! This the REAL CORDLESS red & near infrared light therap-y pad for feet pa-in. Pair with knee therap-y wrap hand pad and waist belt for a whole body therap-y now! 2 IN 1 Detachable Battery: The compact design combines a large 4000mAh battery and controller in one small box. Controller is easy to use and control. The battery connects to the slipper through 5 strong magnet points and can be easily detached for setup or charging. Multi-Functional Personalized Use - Infrared light therap-y for feet pa-in reli-ef pad with THREE LIGHTING MODE FIVE LIGHT INTENSITY TEN PULSING RATE 5-30 MINS SET You can choose appropriate mode according to body pa-in type and level. Three Light Therap-y Modes: There are red & near infrared lights/ only red lights/ only near infrared lights total three mode are free for you to choose in addition the light intensity can also be selected. Red + Near Infrared + Pulsing Therap-y: Experience targeted effective comfortable and powerful therap-y with the ultimate combination of red light infrared light and pulse lights. Packing List: Light Pad ×1 Power Bank ×1 USB Cord ×1 Note: If you have any questions feel free to ask we are available 24 hours a day. DGYAO All products have one year warranty free replacement parts for life. If preserved properly the product will last for at least 3 years.