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 varied Specification: Condition:100% Brand New Size: As the picture proven Color: Random Color Quantity:1PC Package Includes: 1PCx hand warmer(without water) 1PCx Power cable 1PCx Funnel 1PCx Stopper Notice: Please allow 1-3cm error because of instruction manual dimension and ensure you don't intellect before ordering. Please pointless to assert colors may possibly exist chromatic aberration because the different placement of pictures.