The Maclan Racing Bluetooth ESC Programmer is designed for transmitting data wirelessly between Maclan Racing ESC and mobile devices (Android OS with 5.0 or later, and iOS with 13 or later). With Maclan Racing Smart Link App, it allows ESC programming, firmware updating, and viewing data logs.Specifications:Interface: micro-USB connectorBluetooth 5.0Dimensions: 35x35x10mmWeight: 11gSupported OS: Android OS 5.0 or later, Apple iOS 13 or laterESCs Supported:DRK 160DRK 160+ TSRDRK 160 RSM32t Pro 160M32t Pico 100M32e Pro 200