1、Intelligent Digital Display: Clear remaining power, LCD display design, you can clearly check the remaining power, easy to charge in time; temperature display, smart sensor, visual temperature is more secure. 2、Rapid Heating: 5 seconds quickly double sided heating, the heating effect is evenly heated, only five seconds without waiting. 3、Rechargeable And Dischargeable: Fast charging 2A technology, up to 2A charging current, fast charging and discharging operation, and efficient replenishment of hand warming power. It becomes a power bank in seconds, a mobile phone energy supply station. 4、Comfortable Touch: Touch paint, comfortable hand feel, surface coating like skin like delicate treatment, fit the curve of the palm. 5、Features: Small size, easy to carry, intimate lanyard design, non slip drop, adjustable temperature in low, medium and high three gears. 1 x Hand Warmer1 x Usb Cable1 x User Manual1 x Hand Rope1 x Storage Bag Item Type: Rechargeable Hand WarmerMaterial: ABS, Aluminum AlloyBattery Type: Polymer Lithium Battery (Shipped With Built in Battery)Battery Model: 18650Battery Capacity: 6000mAhHand Warmer Temperature: First Level: Green Light 40℃, Second Level: Blue Light 50℃, Third Level: Red Light 60℃ (Positive And Negative 5%)Product Size: Approx. 10.4 x 7.5cm / 4.1 x 3in