Fit & Design: Standard fit for a stylish and comfy feel in colder weather Full zip with mock neck to keep you warm Thermal heated fleece vest to keep you warm during any cold-weather activity Four-way stretch softshell moves in multiple directions for versatility Battery-integrated temperature controller to adjust the warmth of the vest Four Microwire(R) heating zones: two on chest, and one on back and neck Soft shell is bonded to a fleece lining for added comfort Made with 135deg F maximum heat Perfect for mid-layering or outerwear Technology: Microwire(R) heating technology gives heating performance and comfort for 8 hours to withstand long-term cold weather conditions Active heat retention technology to keep you warm Added DWR water-repellent finish to keep you dry when the elements come out How to Use: Step One: Power on by pressing and holding the power button Step Two: Changing temperature- press and hold the power button until LED light reflects desired setting. Power level setting can only be indicated when connected to the garment Step Three: Check remaining battery life by disconnecting battery from the product. Press and hold power button; LED indicator will show 1 to 4 lights. LED lights indicate remaining battery life Turn on the Heat: Locate power pocket- found on the wearer's left pocket Open the pocket- locate the power plug inside Turn on the battery- hold the power button until it lights up Insert the plug- place in battery port and push it down to secure in the plug holder Customize your warmth- push the power button on the battery to select your preferred setting Close the pocket- place the battery into a pocket and close Estimated Heating Times: 100% (4 red/blue lights) - 2 Hours 75% (3 red/blue lights) - 3 Hours 50% (2 red/blue lights) - 5 Hours 25% (1 red/blue light) - 8 Hours Includes: (1) 7V 3400 mAH rechargable Lithium-ion battery pack (1) Wall charger Detailed instructions & Lifetime Warranty Additional Details: Charging battery takes about 3 hours; charge 100% before use. Charge overnight for first usage Red light will appear on the wall when charging; will change to green when charged Maintain at least 25% power when battery is not in use. This will conserve the life of any 7V battery Country of origin: Imported Machine wash on gentle cycle