Travel Bottle Warmer Made with stretch-neoprene and a unique heating element design, this insulated travel bottle warmer stretches and contours to fit any shape bottle � even tapered ones, to warm quickly and evenly. Convenient design fits cup holders and hangs from the dashboard. Features include a power indicator light and a thermal fuse to prevent overheating. Works up to 50% faster than others. Plug it into any vehicle lighter to warm food and bottles as you drive.