["The Nezha expansion board is designed for use in conjunction with micro:bit. You can connect 4 servos, 4 motors and 7 sensors at the same time via RJ11 connectors. The housing is equipped with Fischertechnik-compatible connectors that combine electronic modules with conventional components, and students can independently create creative micro:bit programming projects", "Power supply: lithium battery", "Capacity: 900mA", "Charging port: microUSB", "Input voltage: 5V", "Charging current: 1A", "Programming software: MakeCode", "python:ecode"]