Red light therapy is new for us but something I wanted to try. Ordered the 3 light module setup for the best coverage. The setup comes very nicely packaged and includes the modules, straps, charge/storage box, and a USB charging cord. Also in the box are some basic instructions for use. The entire thing is very well made out of quality materials. You can definitely tell it is not just a $20 item that you use a time or 2 and then toss out. The straps do work well but they can be rather confusing and are a hassle to use. It is also a pain that you can't just leave the straps on the modules when the modules are being stored in the box. The red light therapy modules are easy to use once your figure the process out. Charging is also not that difficult via the included USB-A to USB-C cord. They don't get hot even on the STRONG setting – there are a total of 3 (MILD, MID, STRONG). The modules also give a soft beep when the cycle has completed. It takes some time to charge the box but it will recharge the modules a time or 2 before you have to plug it in again. We really appreciate that the entire process can be done with just the modules and charging/storage box and you don't have to download some questionable foreign 3rd party app just to use them. So, in the end they are not a miraculous cure but if you use the modules regularly for a period of time you can notice a difference. Overall they are a good tool to have in your pain management arsenal. My family has tried this setup on the lower back, ankles, and based on the positive experience there we will be trying knees, hips, and elbows....