Feature: The RC Transmitter and Receiver Toy, 6CH, suitable for 2.4G remote control. Application: This Transmitter Receiver Radio System for DIY RC Cars. With music:The Remote control for crawler type engineering vehicle can realize forward, backward, left steering, right steering functions, arm raising and lowering and other functions. Stem: Remote control circuit pcb transmitter and receiver board is Great for Stem and developing hands on skills for kids. Package included: 1x Transmitter module,1x Receiver module,1 Remote Control. Size Chart: remote controller: approx. 11.7cmx9cm/4.61inchx3.54inch Package Includes: 1 Remote Controller 1 Receiver Board 1 Transmitter Board Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!