Features: Easily remove from one jacket and transfer to another. 3 heat zones and 3 powerful settings allow precise control of core temperature in cold and unpredictable conditions. Compatible with most 5V power banks. Durable and lightweight design. 3 adjustable heat settings with push-button control. Built-in safety function helps prevent short circuits. Installs in seconds: Peel-and-stick adhesive pads provide a secure, permanent hold on clothing. Includes 2 installation kits. Each kit contains 3 adhesive-backed patches that install quickly and fit discreetly inside your coat. With 2 kits, you can transfer the heater between 2 different coats. Specification: Material: Cotton Color: Black Length: approx. 84cm / 33.07in Heat Setting Temperatures (Degrees Fahrenheit): High: 120-140F 2.5 hours of use Medium: 110-120F 3 hours of use Low: 100-110F 4 hours of use Quantity: 1 piece Note: Transition: 1cm = 10mm = 0.39inch No retail packaging. Please allow 1-3cm error due to manual measurement. Due to differences in monitor displays, the image may not reflect the actual color of the item. Package includes: 1 x Coat Heater