Specifications of Transmitters: Channels: 4 Mode Type: RC Car Boat Tank RF Response Time:10s-12msPower: Less than 20dbm Control Distance: about 200-300m Voltage Input: 4.8V-6Vor 1.5AAAx4 Low Voltage Warning: 4.5V Net Weight: 260G Size: 180x80x145mm Specifications of Receiver: Channels: 4 Frequency: 2.4GHz; Size:16x18x12mm Other functional setting: EXP/REV/EPA/TRIM; Package included: Attention: batteries are not included. 1pc x Remote Controller 1pc x Receiver 1pc x User Manual Boot steps: 1 . Connect the accessories correctly : The transmitter battery is powered and installed correctly . The receiver is not powered and the channel interface is installed correctly . The transmitter and receiver have been successfully matched to the code 2 . Turn on the transmitter 3 . Turn on the receiver power and the receiver LED is always on 4 . Boot is complete This product is a sophisticated hobby product and not a toy. It must be operated with caution andcommon sense and requires some basic mechanical ability. Failure to operate this product in a safeand responsible manner could result in injury or damage to the product or property. This product isnot intended to be used by children without direct adult supervision. It is essential to read and followall instructions and warnings found in this manual prior to installation, set up, and use, in order for theproduct to operate properly and to avoid damage or injury. Specs: 1. 2.4G technology, FHSS 67 channels frequency-hopping spread spectrum, highly resistant to anti-jamming. 2. Receiver response time is 2ms, ensuring a fast response and better control. 3. Smooth and highly sensitive to control inputs and stable at distances from 200-300m. 4. Compatible with a variety of vehicles, suitable for RC cars, RC boats and RC tanks. 5. With brake and fail safe, out of control protection function. 6. Each of the 4 channels can be set respectively, supporting mixed control of 1 and 2 channels. 7. Voltage range of the transmitter. 4.8V-6V voltage warning: 8. Voltage range of the receiver. 3.3V-6V, working current 30mA, supports high voltage servos.