Features: 1. Automatic temperature control, Avoid overheat 2. Disposable water injection, everlasting use 3. Voltage: 220V,450W, 50Hz 4. According to different surroundings temperature, the use of time are also different Specification: Condition:100% Brand New Size: As the image shown Color: Random Color Quantity:1PC Package Includes: 1PCx hand warmer(without water) 1PCx Power cable 1PCx Funnel 1PCx Stopper Notice: Please enable 1-3cm error because of guide size and make sure you do not intellect before ordering. Please maintain in mind that colors may perhaps exist chromatic aberration since the diversified placement of pictures.