Product information:

Power supply mode: USB
Rated voltage: 5v
Rated power: 8W
Heating method: charging
Hand warmers type: hand warmers
Color: T66 white, T66 black, T66 powder
Whether built-in battery: Yes
Built-in battery capacity: 4000 mA or more
Battery life: more than 12 hours
Fever time: 12-24 hours
Additional functions: explosion-proof, double-sided heating, multi-level temperature adjustment, intelligent temperature control, rapid heating, charging and hand warming in one

Size information:
179*178*55mm

Packing list :

Neck and hand warmer*1USB data cable*1Instruction manual*1

Product picture: