No instructions but turns when you push and hold button, has 3 levels of heat. battery has a screen that displays % of power. Any battery with a c connection would power this warmer..

Awesome warmer. I have 2. I use one to sit on to keep my fanny warm on the cold bleachers and one buttoned up for my hands.

Nice and cozy on medium, fairly hot on high. Problem when sitting on it is that the button that turns it on/off and changes the temperature settings is in the pocket where the battery goes, and you sit on it…and change the temp. It's a rather large percentage of the seat warmer and hard to avoid. Each time you stand up and sit back down you have to check it out it might end up on high and use up the battery too fast.

First of all no instruction on charging or use. Packaging is miss leading. The outside packaging shows three different pieces. While opening the package there was only (1) piece. I probably end up returning.

There are no instructions or information included. I don't know how to turn it on or use it.