Lamp Device Portable Infrared Device Portable Infrared Lamp Red Light Device Machine For Muscle Relax Features: 1. More Concentrated Energy: Strong penetration ability, suitable for in small areas and concentrated areas. 2. Light Weight: Small size, easy to store and carry, can be easily put in your bag, suitable for travel. 3. Near Infrared Light: Can penetrate deep into the skin: directly the point, so as to more effectively. 4. Shorten Time: Infrared light device is equipped with a 30 optical glass lens, which can increase irradiance of 120mW/cm at a distance of 1 inch, thereby improving efficacy of infrared light . 5. Wide Range Of Applications: Very helpful for leg joint , back, shoulder, finger, knee, foot and neck . Product Description: Lamp Device,Portable Infrared Device,Portable Infrared Lamp Red Light Device Machine for Muscle Relax Material: ABS Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!) ,(Please allow 1-3mm error due to manual measurement. please make sure you do not mind before ordering.) 2. Light Weight: Small size, easy to store and carry, can be easily put in your bag, suitable for travel. 1. More Concentrated Energy: Strong penetration ability, suitable for in small areas and concentrated areas. 3. Near Infrared Light: Can penetrate deep into the skin: directly the point, so as to more effectively. 4. Shorten Time: Infrared light device is equipped with a 30 optical glass lens, which can increase irradiance of 120mW/cm at a distance of 1 inch, thereby improving efficacy of infrared light . 5. Wide Range Of Applications: Very helpful for leg joint , back, shoulder, finger, knee, foot and neck .