Winter Hand Warmer And Power Bank Two-in- Rechargeable Hand Warmer: Features: Constantly warm your hands, side is heated. Single side heating,fast heating in 8 seconds, press once, first temperature 35°C-40°C, press, second temperature 45°C-50°C, press three times, third temperature 55°C-60°C, third temperature, flexible switching Small and compact, easy to carry and go out, drop-proof design, safer lanyard design, non-slip drop Charging is convenient and fast. You can charge this product with a power bank or laptop When charging, turn off the power and prohibit use to avoid burns Use the matching charging cable to charge this product with more of mind, with current control Product Description: Product : PCX168138/PCX168138A Product size: 8 * 2.5 * 6.5 Packaging size: 9 * 3.6 * 13 Gross net weight: 14.5/12.5 Battery milliampere: 1500milliampere Built in lithium battery: 1800MAH Range: 60-150min Package Content:1pc x Hand warmer Hand Warmers: usb portable mini thermostatic heating electric warm hand treasure double-sided heating Portable: This hand warmer easily fits into gloves, pockets, and wallets, allowing you to enjoy warmth anytime, anywhere Instant Heat, Lasting Warmth: Unlike disposable hand warmers, it is a rechargeable and reusable hand warmer Gifts for Thanksgiving, Christmas, New Year, birthdays, and Valentine's Day; Keeps hands warm all day at the office, in class, camping, hunting, or during any outdoor winter activity Recommended Uses: Ergonomic comfort,easy grip,Safety certified temperature control chip