Primarily purchased to give my daughter any relief from her Menstrual Cramps which are severe. She had the same reaction, comfortable and eased the discomfort which is saying a lot. Many less tears while using this pad.
For myself, after a bike ride and run I get lower back pain. I was surprised how well this heated my back like a corded heating pad. BUT, instead of using the massive 18"x24" pad over the whole back and bottom, this targeted exactly where I needed it. Heath output was the same I could get from the heating pad, strong & hot. I've been wearing it during this review so far, and had to turn it down 1 heat setting after 10 minutes. Again, saying a lot because I rarely turn any heating pad down from max. No more needing to deal with greasy Icy Hot or patches to deal with.
Packaging, excellent. Not over packaged, little waste, all can be recycled. 5 stars.
Style: Looks nice, feels soft. Easy buckle for anyone to use, light tension for those with arthritis or limited hand strength.
Case: Honestly, I appreciate there is no velvet bag, less waste as its unneeded. 5 stars.
Functions: Heating: 5/5 It has a great range. I set it to high and wore it though the first part of this review as mentioned. Took it off to show my daughter and had a reddish spot on my back where it was on the highest setting. 5 stars.
Functions: Vibration, three settings which are different from each other and powerful. See video to hear modes. 5 stars.
Functions: Timer: Works as advertised. 5 stars.
Ease of Use: Simple. 5 stars.
Charging: USB-C. 5 stars. Comes with the cable, you need to supply the charger. This is awesome, less e-waste. I have a TON of chargers in a box after all these years. I didn't need another one. The only thing I would like changed is that when 100% charged the light indicator would turn off or a different color, but that's really a small detail. I plug in things all the time and come back hours later anyways and this will be no different.
Overall, I'm really happy with this product, especially when traveling this is ideal to toss in a bag and use wherever we are.