Years ago when Gerbing's (now First Gear, I think) made heated gear, I bought a controller, jacket and gloves. The controller plugged into a female bayonet plug that came from the battery. The jacket plugged into the controller, the gloves plugged into the sleeves of the jacket. To be honest, the gloves were too much off a pain in the tush and I only used them when temps were below 30 degrees. I killed 5 minutes every time I took the gloves off & on. The jacket was an under garment which means I had to fish the wires out of the sleeves, plug them into the gloves and then get all the wiring situated that nothing was uncomfortable. What felt comfortable in the first 5 minutes was a real annoyance 20 minutes down the road.