Ocoopa Rechargeable Hand Warmer

3 SECOND FAST HEAT ON BOTH SIDES: Press and hold the switch and enjoy even heat from both sides of the handwarmer in just 3 seconds. Available in three temperature settings: Low (35�C-42�C), Medium (42�C-48�C) and High (48�C-55�C), it's easy to keep warm whether you're indoors or out SAFETY AND RELIABILITY: The electronic hand warmer is rechargeable and reusable, with a built-in intelligent temperature control chip and heating system, providing multiple protection functions such as overcharging, overvoltage, overcurrent, overtemperature and short-circuit protection. Aluminium alloy shell has excellent thermal conductivity and heat dissipation performance, safer to use 2-in-1 Rechargeable Hand Warmer: 5200mAh battery for emergency charging of electronic devices, electronic hand warmer with USB-C output (USB-A adapter included). Three levels of indicator lights keep you informed of remaining battery power and heating status, ensuring ease of use EASY TO USE: The electric hand warmer can perform all functions with a single button operation: long press for 2~3 seconds to turn on/off the hand warmer mode; single click to switch between the three temperatures; double click to display the remaining battery level. Small and compact design is easy to carry, can be easily put into pockets, gloves or bags. **PLEASE NOTE THAT THE HAND WARMER NEEDS TO BE PLUGGED INTO THE MAINS FOR APPROXIMATELY 30 MINUTES UNTIL THE CHARGING LIGHTS COME ON**