With two batteries, one can be charging while the other is in use.
Just right for the traveler
I purchased this for a family member who needs some comfort help on long trips. Terrific idea!
it is a very good product.
it is helping me to have less lover back pain.
A battery with staying powe.
With back warmer Im able to keep soothing heat on my back for long stretches.
I would like a longer time between shut offs.
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