ECX 2.4GHz Transmitter V4 1/24 All Made by ECX Electrix; ECX Electrix is a United States based company; parts are sourced from China producers ECX Electrix part number 10003; UPC 605482587645 This item works with: ECX 1:24 Ruckus 4WD, 1:24 Temper Crawler, 1:24 Torment 4WD