The hand warmers come in different combinations of blue, black, and purple, as well as a double green option. If your top priority when it comes to electric hand warmers is battery life ...

The hand warmers come in different combinations of blue, black, and purple, as well as a double green option. Dnaleao Rechargeable Hand Warmers are listed on Amazon for $18.99 or $19.99 depending ...

Hand warmers are typically sold as a pair ... when charging, the lights turn blue and show how full the battery is. The lights are almost too tiny, though, requiring me to get the right angle ...