The Handwarmer is rechargeable (included lithium batteries) and provides up to four hours of continuous warmth per charge, plus doubles as charging port for mobile devices. Other features include a durable nylon protective shell with a zippered accessory pocket and an adjustable waist strap.
WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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