Adjustable LED light therapy belt with red and infrared light. Used to promote blood circulation, relieve stress, reduce tension and muscle pain. The design has three different programs to choose from, red light only, infrared light only or a combination of these. The soft belt is easily fastened with Velcro and is powered by the included USB cable. Programs/Modes 1: Red light only at 660 nm 2: Infrared light only 850 nm 3: Combined 1+2 (red light 660 nm + infrared light 850 nm) Program time: 5/10/15/20/25/30 minutes Specification Size: 255x133x5mm Weight: 350g Package includes: Red light therapy belt, USB cable with remote control, Velcro, English manual Other: NOTE!! Usage time should not exceed 30 minutes per time. Material: Neoprene Powered by: USB cable Power: 12W Voltage: 5V Lamp type: LED Light modes: Four Washing instructions: 30 degrees, should not be tumble dried (the belt with LED light/red light cannot be washed) Frequency range: Wavelength 1*660nm 1*850nm Versatile light therapy belt\r Charged via USB cable\r 3 programs with timer\r 60 LED diodes