Features: 1. Automatic temperature control, Avoid overheat 2. Disposable water injection, everlasting use 3. Voltage: 220V,450W, 50Hz 4. According to the various surroundings temperature, the use of time also are different Specification: Condition:100% Brand New Size: As the picture shown 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 thanks to guide length and make sure you don't mind before ordering. Please preserve in mind that colors may possibly exist chromatic aberration as the varied placement of pictures.