Comes with one two files LED temperature control battery case(not include battery)
1) This is our latest heated scarf design.
2) It is suitable for most outdoor activities in cold weather.
3) Has very high thermal efficiency.
Effective at promoting blood circulation
4) Product uses DC power supply; it is safe and there is no danger of electric shock
5) Uses ordinary AA batteries or rechargeable batteries. We recommend rechargeable.
Battery box has two LED temperature control for power saving. 6) Electric power can reach up to 3 hours.
7) Surface temperature in heat range: 35C-42C.