place of origin: guangdong,china handy warmer: warm stone usb warmer : pocket warmer Product Details:Place of OriginGuangdong, China (Mainland)Brand NameHSDModel NumberHSD- ... good touching feeling 3 rechargeable to reused Hot stone, hand warmer ,Hot stone warmer,Pocket warmer, Hand warmer Specification Voltage AC100 -240V /50-60HZ DC 5V ...