Features: Premium Substance Standaread: Produced from excellent ABS and PC materials, this USB heat pack ensures durability and a smooth, skin like texture for a comfortable grip. Rapid Heating Technology: Features RATIO film heating technology, thawing up in just 3 ticks for immediate and permanent warmth. Multiple Security Protectionsecond: Hard wearing a intelligent security center and a strong covering, ensuring safe and worry complimentary use. Three Temperature Settingsecond: Proposals three modifiable temperature levels (65°C, 55°C, 45°C) to suit different weather conditions and individual preferences. Ergonomic and Transportable Planumberebog: Compact and thin with a Usb CREATE connection, excellent for home, office, backpacking, otherwise travel, providing warmth ease wherever. Specifications: People oriented USB heat pack Connection type Usb CREATE Temperature gear 65/55/45°C Input potential 5V/1A Product power 7 WIDTH Product substance ABS+PC+Aluminum alloy Product size 95x65x38mm Product color. Package Includes: Hand Warm Bagx1 Instruction Manualxcharge cablex1 note: Keep the socket and its plug area dry. It should be placed on heat-resistant content to prevent a fire from occurring. Try not to charged for too long a time.