This multifunction program box is designed specifically for programming HOBBYWING brushless ESCs. Its user-friendly LCD interface simplifies ESC programming, making it quick and straightforward. You can conveniently upgrade ESC firmware and adjust parameters online using a PC. Compact and portable, it is well-suited for field use. Additionally, it supports built-in OTA programming via Bluetooth™, allowing seamless compatibility with iOS devices. FEATURES: Built-in LCD screen for displaying, setting, and sharing ESC parameters directly. USB connectivity for easy firmware updates to stay current with the latest features. Compact size designed for convenient field use. Bluetooth OTA programming allows wireless adjustments with iOS compatibility. Voltage monitoring to track overall lithium battery and individual cell voltages for optimal performance. COMPATIBILITY: HobbyWing Platinum series of brushless aircraft ESCs HobbyWing XERUN series HobbyWing EZRUN MAX series (V2.0 and later) HobbyWing Platinum and SEAKING PRO series Some HobbyWing QUICRUN ESCs SPECIFICATIONS: Part# 30502002 Size: 5.24 x 3.44 x 1.75" Weight: 85g Input Voltage: DC 5V—12.6V (a separate battery is needed for powering this program box when the ESC has no built-in/external BEC) HELPFUL LINKS: Program Card Manual INCLUDES: (1) Hobbywing G3 Multifunction LCD Program Card & Voltage Checker(1) Product Manual