From the start, this has not worked consistently. I have tried to use it for a couple months now, and it’s only gotten worse. The Velcro slips, so I have to hold it while it reads my blood pressure. Most concerning, I can take my blood pressure twice, back to back, and the numbers will be 20-30 points different, so I don’t know which or if any readings are accurate. After a couple months of use, it now only works about half the time. Most of the time I get an error message over and over and just give up. I bought this model because it was easy to travel with, but I would not recommend buying this for any reason. To me, accurately reading blood pressure is the only really important feature of a blood pressure monitor, and this model cannot do that. I am really disappointed the to wasted money on this and now have to purchase another device from a different company that can actually help me monitor my blood pressure.