2 In 1 Retro Heater USB Charger Output Portable External Battery Hand Warmers 5000mAH Power Bank for Christmas Gift

Overview: Q1: Only one side or both sides? A1: Warm the whole hand. Q2: When will the hand warmer reach 52℃? A2: When the hand warming mode is turned on, the real-time temperature will be displayed, and then it will be heated to 52℃, which takes about 30s-1min, and then kept at 52℃. (If the room temperature is too low, the heating time will be longer, which is normal.) Q3: How long will the hand warmer heat up? A3: After fully charged, it can be kept at 20℃ for 3.5h to 4.5h. Question 4: Is it safe to use? A4: The chip automatically controls the temperature during charging, and the flame-retardant ABS material can also prevent high temperatures. Q5: How do you change the hand warmer and mobile power modes? A5: There are 2 buttons on it; press and hold the right button for 3 seconds, and it will start to display heat and digital temperature. Press the right button simultaneously for 3 seconds to turn off the heating mode. Press the left button to turn on the mobile power mode and digital battery display. Q6: How to charge? A6: 1 input and 1 output interface on the right side. There will be a micro USB cable for charging in the package. Q7: Why does the temperature decrease after 52℃? A87 has a high-temperature protection function. When the hand warmer reaches 52℃, it will stop heating. If you think the temperature is too high, turn it on again. Specification: Material: flame-retardant ABS, high thermal conductivity aluminum alloy Battery capacity: 5000mAh Input: 5V / 2A Size: 69 * 74 * 34mm Function: hand warmer and charging mobile phone Package Content:  1 x mobile power supply  1 x USB cable 1 x flannel bag