About the product:
[ Quality Materials ] - The Hand Warmer Waterless Hot Water Bottle heats graphene covered by soft flannel to provide contact warmth with three temperatures (40℃ 50℃ 60℃).
[ USB Recharged ] - Powered through a USB connector, hookup your USB Power Bank and press and hold the power button for 5 seconds to turn on/off. Fast heating in approximately one minute.
[ Lightweight Foldable ] - The Hand Warmer Bag is foldable and portable in design. Easy to carry anywhere with 3 vibrant colours to choose from.
[ Washing ] - Hand wash stains with a damp cloth and let it dry under the sun. Not machine washable!
NOTE: (Power Bank is not included)
1. Do not use hot water or strong detergent to clean the flannel.
2. Do not connect directly to a wall USB power charger as this may damage the product. Please use a USB Power Bank only charging connection as your power supply.