1.D/C *4 V or *2 V connect to the Cigarette plug
2. Odorless, Noiseless, Smokeless Heat and warm Mattress
3. Safety for  Burn and Fire
4. No eclectronic Nichrome wire, LOng product-life, easy carry and
keeping
5. Carbon yarn weaved flexible fabric is used.
6. Temperature Controler is available
7. Generate Far Infrared(Ultrared), Feel comfort during
 Sleep