Features: [Eco-friendly]Type-C cable is included. 9600mAh power bank could convenient charging for 5V power adapter, phone, notebook, power bank, etc. [Adjustable Temperature]3 modes of heating temperature to relieve neck pain, keep you feel warm in cold winter. [Safe to Use]The electric neck warmer support current protection, temperature control protection, overcharge protection, over-discharge protection [Pressure-free]U-shaped neck wraps closer to the skin, fit neck size, and neck curve of different people. [Humanized Design]Cordless design make it convenient to take with bodyside, no matter when and where you could enjoy a neck warmer in the home, office, car, or travel.