Use the comfortable and feature-packed HPI TF-40 2.4GHz radio system for supreme control and confidence when controlling your car or truck kit! The HPI TF-40 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, 3-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, and the waterproof RF-40WP receiver allows you to take your RC vehicle anywhere you can dream! The advanced features of the TF-40 let you set the radio up for your car with custom settings like servo reversing, centre trim, end point adjustments, dual rate and more. Only 4 AA batteries are required to power the TF-40, so it's light in your hands, and the drop-down steering wheel makes it comfortable to hold. With the adjustable, built-in failsafe feature, you will be protected just in case the radio transmitter loses its connection with the receiver.TF-40 Radio Set FeaturesDigital 2.4GHz technology Waterproof RF-40WP receiver with failsafe feature Automatic frequency-hopping design finds channels without interference Run your HPI kit with other drivers without worrying about frequencies! Adjustable built-in failsafe 3 channel Drop-down steering wheel design for improved comfort and racing feel Servo end point adjustments for steering and throttle Servo reversing Steering dual rate Centre trim (steering and throttle ) Light weight (only 4 AA batteries required) Simple switch for legal use in FrancePlease note: The TF-40 transmitter will not work with the RF-20 or RF-30 2.4GHz receivers.