Description Specification: Material ABS environmentally friendly material USB input 1A USB output 2.1A Batteries Polymer Size 16.1 x 7.9 x 1.8cm Features: ABS environmentally friendly material, polymer lithium ion battery. High energy density, light weight and light weight. Digital display screen. Semi-circular body craft design. LED lights on the back. Brand compatibility: support Huawei Xiaomi Meizu VIVO and other major brands. Package included:1 x Power bank