* Complies with international aviation standards: single portable charging device with a capability of less than 100 Wh, UN38.3 certified. UN38.3 certification issued by Shanghai TECH. Chemical Industry Testing Co., Ltd., Test Report No.: NO.1120060280.*Just 1/3 larger than the standard charger for the Mi Notebook: the dimensions of the 10000mAh Mi Power Bank 3 Ultra Compact are 90×63.9×24.4 mm and the dimensions of the standard charger for the Mi Notebook are 30.8×60×57mm (not including pins), so the 10000mAh Mi Power Bank 3 Ultra Compact is just 1/3 larger than the standard charger for the Mi Notebook.*Fits right in your pocket: the 10000mAh Mi Power Bank 3 Ultra Compact weighs approximately 200 g and has a small body. When not in use it can easily be stored in a pocket. Confined spaces may compromise heat dissipation of the power bank and other devices when in use. Therefore, when charging mobile phones and other devices for extended periods of time, do not put the power bank, mobile phone or other device in your pocket in order to ensure good heat dissipation for your phone and other devices.*Enough to charge a smartphone three times: at a room temperature of 25±2°C, an iPhone SE (A2298) was tested. The fully-charged 10000mAh Mi Power Bank 3 Ultra Compact was able to fully charge an iPhone SE (A2298) in airplane mode with 1% battery approximately 3.1 times.*Fully charged in 3.5 hours: a 24 W or above charger and C to C cable were used for the test. The cable and charger are not included in the package and need to be purchased separately.*Eco-friendly casing: the RoHS environmental protection test was performed by Dongguan EMTEK Technology Co., Ltd., Test Report No.: ED200511006CR001. Unless otherwise noted, all data above are measured values from Zimi laboratories. However, the data may vary subject to objective environmental changes (e.g. device software versions, ambient temperature).