The hpi racing mtx-400 4-channel radio system uses the latest digital 2. 4ghz radio technology to give you trouble-free, total control of your rc car. This is a fully-featured, lightweight, 4-channel radio with advanced ergonomic features and total adjustability. Thanks to its crystal-free 2. 4ghz technology, you will be able to confidently drive with your friends without worrying about things like frequencies or radio conflicts

Compatible with rf-51, rf-51n and mrx-400 receivers, allows you to take your rc vehicle anywhere you can dream!
also compatible with nano-ttr's.  

The advanced features of the mtx-400 let you set the radio up for your car with custom settings like servo reversing, centre trim, dual rate and end point adjustments. Only 4 aa batteries are required to power the mtx-400, so it's light in your hands, and the foam steering wheel makes it comfortable to hold.  

mtx-400 radio features:

• digital 2. 4ghz fhss technology
• 4 channel
• digital on and off switch
• foam-covered wheel for extra comfort and grip
• servo end point adjustments for steering and throttle
• servo reversing
• steering dual rate
• centre trim (steering and throttle )
• audible warnings if you leave the mtx-400 switched on as well as battery life!
• lightweight

what you need:

• 4x aa batteries