Product name:Ax5s 2.4g 3ch Transmitter with Ax-5x Receiver Compatible for Q65 Mn90 1/10 1/8 Crawler Trx4 Axial Scx10 D90 RC Car Boat --Remote control for RC car boat: This product is specially developed for remote control cars and boats. 3CH remote control for RC cars and boats--Function: It possesses super active and passive anti-jamming capabilities, very low power consumption and high receiving sensitivity. --Special speed limit function: Let the beginners can control the car within limited speed range It has a special Throttle limit switch --Frequency: Works between 2.400GHz to 2.4835GHz frequencies, divided into 160 wave bands. It covers the entire band width of the antenna bandwidth range --Feature: Adopts AFHDS (Automatic Frequency Hopping Digital System). Built-in design of the antenna in the transmitter. Transmitter is powered by 4 x AA Battery . Description: Name: AX5S 2.4G 3CH Transmitter with AX-5X Receiver Specifications of Transmitter: Channels: 3 Mode type: RC car/boat RFrange: 2.4-2.48GHz Low voltage warning: yes (less than 3.5V) Powered by: 4 x AA Battery (Battery NOT included) Display mode: LED indicator Weight: 262g Size: 15.6 x 22.3 x 9.4cm Specifications of Receiver: Channels: 3 Model type: car / boat Frequency: 2.4-2.48GHz Power: 4.0-6.5V DC Weight: 5g ANTlength: 2.6cm Size: 3.5 x 2.2 x 1.2cm Color: black Packing list: As shown