Safe and Efficient New Technology - The heated neck warmer adopts the latest graphene heating technology, which is safer and produces more average heat to the human body compared to the traditional carbon fiber heating system. .This heated neck warmer is focused on addressing issues related to neck stiffness and soreness. Heats up in seconds for an ultra-comfortable heat treatment for the neck. Especially suitable for writers, students, teachers and people who use computers frequently. .EASY TO USE - This neck heat pad can be used anytime, anywhere. Just plug it into your PC, power bank or USB adapter and you're ready to go. You can use it at home or in the office for short breaks, long trips to relieve fatigue, muscle stiffness and neck pain. The perfect gift for birthdays, thanksgiving and christmas.