Palm-sized rechargeable hand warmer (WK01 White)

A charging lamp lets you know the remaining charge level easily and there are three temperature settings. Compact size that is perfect for carrying around, and can be used repeatedly after charging A charging lamp that shows the remaining charge and three temperature settings With strap USB rechargeable so you can use it anywhere *USB power adapter sold separately. (Please use a USB power adapter of 5V/2A or more.) Heater temperature adjustment in 3 stages Can be used for approximately 2 to 3 hours in continuous mode (average in strong mode) *When fully charged (varies depending on usage environment) 【specification】 Product number: WT-W33 Built-in battery: Lithium-ion battery 3.7V Built-in battery capacity: 4800mAh Rated input: DC5V/2A Rated power consumption: 10W (when charging) Operating environment temperature (approx.): -20°C to 40°C Charging time (approx.): 3.5 hours Continuous operating time (approx.): Weak (blue) 6-7 hours, Medium (green) 3-4 hours, Strong (red) 2-3 hours Surface temperature settings (approx.): Low (blue) 45°C, Medium (green) 50°C, High (red) 55°C External dimensions (approx.): Width 46 x Depth 30 x Height 107 mm Weight (approx.): 0.16kg (including USB cord) Cord length(1m) *This product is designed for use in Japan. It cannot be used in foreign countries where the power voltage or frequency is different. Source: https://www.nitori-net.jp/