It pulses through 15 minute program. The instructions advise to do no more than 30 minutes. I have used this continuously up to 2.5 hours. Generally, I hang out on the sofa and chill while I watch TV. But, I have worn it to movies when my sitting pain was bad.
When I can't escape my body pain and ibuprofen, muscle relaxants, or topicals aren't going to get the job done, this is my go-to. I REALLY recommend it!