Mirror digital display large capacity power bank $ 19.16 Cell type: polymer lithium ion cell Applicable type: general type Battery type: soft bag Shell material: plastic Additional function: multi-U port output Size: 165 * 81 * 31mm Color: black, red Power supply capacity: there is no battery for nesting (shell + motherboard), need to contact customer service, 20000 Ma, 30000 ma Conversion rate: 70%