It seems to be fine
The battery life is actually pretty darn good. It works in 20-minute timed sessions. Something I don't think you can actually change. I was able to get 6 sessions out of 1 charge so not bad at all.<br /><br />The temp gets pretty darn hot. It was a little too hot for me in its highest setting. I noticed no benefit from the red light therapy but I haven't found any red light therapy device that actually felt like it made a difference. This is/was listed as a messager and it's not. It's a heating unit/red light unit.<br /><br />Just for your information, I hurt my knee while playing a game, minor injury but I did use the neck device around my knee. The heat did feel like it did some good for it. Overall, as a heating device, it seems to do a very good job with a battery that can last several sessions before needing to be recharged. Mind you, This was me using it in mode 2 90% of the time. Highest setting might get half the runtime.
Rating: 4 stars