The most unique feature of the Spark glove is the way it is activated; by smashing them together! Each glove has a piece of flintstone located in the palm, which will cause a spark that will be captured by the glove… Be honest with us; did we get you there?We don't blame you. The Hi-Vis yellow variant almost looks as if it has caught some sparks. The combination of spandex and softshell fabrics gives the Spark glove a slick look and feel with guaranteed comfort. Like most of our electrically heated products, the Spark gloves contain the Dual Power technology. This enables you to choose between a 7,4 or 12 Volt power supply, which can be a separate battery or a direct connection to your motorcycle. We offer different batteries and numerous cable options to provide endless warmth with only one power source for your entire set-up; jacket, pants and socks included. Depending on your choice, the 7,4 or 12 Volt battery wil last up to a maximum of 5:20 or 4:50 hours. (See Power Schedule for f...